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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Takeda; Hitoshi
Address:
Shizuoka, JP
No. of patents:
59
Patents:


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Patent Number Title Of Patent Date Issued
8585265 Vehicle headlamp November 19, 2013
A vehicle headlamp includes: a lamp outer casing; a lamp unit including: a light source unit having a light source that emits light, a reflector and a heat sink; a stationary frame; a movable frame that is supported by the stationary frame to be rotatable about a rotating shaft; a lens u
8016469 Light emitting module and lighting device for vehicle September 13, 2011
A ceramic board is formed in an almost rectangular shape and has one side surface of an outer peripheral surface formed as an abutting surface, which is caused to abut on positioning surfaces of a radiating member, and one surface in a vertical direction formed as a device disposing
7901123 Light emitting module and vehicle lamp March 8, 2011
A light emitting module includes a semiconductor light emitting element disposed on a rectangular board, and a pair of plane-shaped electrode portions formed on the board and coupled to the semiconductor light emitting element. The pair of plane-shaped electrode portions is separated
7829903 Light emitting apparatus November 9, 2010
A light emitting apparatus includes a semiconductor light emitting element mounted on a circuit board; a lighting circuit part mounted on the circuit board; and a cover which covers the semiconductor light emitting element and the lighting circuit part. The lighting circuit part converts
7750458 Light source module and lighting device for a vehicle July 6, 2010
A light source module includes a ceramic circuit board having a predetermined conductive pattern, a semiconductor light emitting element arranged on said ceramic circuit board and connected to the conductive pattern, and an attachment for power feeding bonded to the ceramic circuit b
7654712 Lamp for vehicle February 2, 2010
A lamp module is constructed of a light source part made of a semiconductor light emitting element, and an optical member for distributing light emitted from the light source part. The light source part includes a surface-emitting laser element in which plural light emission parts ar
7636037 Vehicle lighting apparatus December 22, 2009
A vehicle lighting apparatus includes a plurality of semiconductor light sources that are connected with each other in series, a switching regulator for supplying an electric power from a power source to each of said plurality of semiconductor light sources, forward voltage detection
7635952 Lighting controller for lighting device for vehicle December 22, 2009
In a process in which a current is supplied from a switching regulator to multi-chip LEDs, the forward voltages of the LEDs are respectively detected in forward detecting circuits. The detected values are sent to a microcomputer. In the microcomputer, detected values when the multi-chip
7501749 Vehicle lamp using emitting device for suppressing color tone difference according to illuminati March 10, 2009
A light-emitting device (2) including a light-emitting element (2a), a first phosphor (2b), and a second phosphor (2c). The light-emitting element (2a) emits light L1 having a wavelength range within the visible region. Upon receipt of the light L1, or light L3 originating from the s
7414524 Lighting control circuit for vehicle lighting equipment August 19, 2008
A higher voltage out of a battery voltage applied to an ignition voltage terminal or a control voltage applied to a control voltage terminal is supplied to a switching regulator via a diode. Then, a supply of current to an LED in the switching regulator is controlled in compliance with t
7403107 Lighting control circuit for vehicle lighting equipment July 22, 2008
A control unit for generating control signals in response to a communication signal fed from a vehicle, and a plurality of supply units for controlling a supply F of current to respective LEDs in compliance with the control signals generated by the control unit are provided. The cont
7394108 Light-emitting device and vehicle lamp July 1, 2008
A light-emitting device in which a light-emitting element, such as an LED, and an electrostatic protection element for protecting the light-emitting element from electrostatic breakdown are connected in parallel. The light-emitting device is configured such that a connection wire member
7391046 Light source module and vehicle front lamp June 24, 2008
A light source module for generating light, including a semiconductor light-emitting element, nano-particles having a diameter smaller than half the wavelength of light generated by the light source module, a fluorescent substance for generating visible light in accordance with light
7385831 Power supply device and vehicle lamp June 10, 2008
A power supply device includes: a regulator transformer; a primary switch for selectively supplying a current to the regulator transformer; a control circuit for reducing to 0, following each election made at the primary switch, the minimum value of a current output by the secondary
7385349 Light emitting module and lighting unit for vehicle June 10, 2008
A light emitting module for generating a light includes a semiconductor light emitting unit for generating a light, a plurality of nanophosphor particles having diameters which are smaller than a half-wavelength of the light generated from the light emitting module and serving to emit a
7368885 Lighting controller for lighting device for vehicle May 6, 2008
A lighting controller for a lighting device for a vehicle includes a semiconductor light source; a power source for supplying electric power; and control circuitry for receiving the electric power from the power source and controlling a current supplied to the semiconductor light sou
7330107 Lighting control circuit for vehicle lighting equipment February 12, 2008
A PMOS transistor is inserted in a circuit connecting a power supply terminal of a power supply circuit and a battery terminal. When a control signal input terminal goes to a low level, it is decided that a PWM signal or an H control signal is input into the control signal input term
7327051 Lighting control circuit for vehicle lamps February 5, 2008
The supply of a predetermined current to LEDs is controlled by using series regulators. In accordance with the controlled states of the series regulators, a switching regulator adjusts an output voltage relative to the LEDs to the maximum voltage. When a ground fault occurs at the anode
7318662 Vehicular headlamp January 15, 2008
A vehicular head lamp includes a first light source module having a plurality of semiconductor light emitting elements and a second light source module connected in series to the first light source module, having semiconductor light emitting elements the number of which is smaller th
7309960 Vehicular lamp with current controlling unit December 18, 2007
There is provided a vehicular lamp that can inform walkers or drivers in the other vehicles of the existence of the moving vehicle even where the circumference of the vehicle is bright by emitting a light amount larger than that of normal times when the circumference is bright. The vehic
7301284 Lighting control circuit for vehicle lighting equipment November 27, 2007
When an H signal of H/L binary signals is input into a control signal input terminal, a PWM signal is output from a multivibrator. When this PWM signal is input into a power supply circuit via a voltage converter circuit, such a control is repeated that a rated current flows through an
7294968 Signal transmisson system and vehicular lamp November 13, 2007
There is provided a vehicular lamp that can be miniaturized by reducing signal lines connected to a vehicle main body. The vehicular lamp that is used for a vehicle includes a light source unit, and a signal line that connects the light source unit and a light source controlling unit for
7282748 Light emitting module and lamp October 16, 2007
A light-emitting module having a light-emitting efficiency. The light-emitting module that emits light includes a semiconductor light-emitting element that emits light; and a light transmission member that is provided to cover the semiconductor light-emitting element with materials f
7282747 Light emitting module and lamp October 16, 2007
A light-emitting module having a light-emitting efficiency. The light-emitting module that emits light includes a semiconductor light-emitting element operable to emit light, and a sealing member operable to seal the semiconductor light-emitting element with materials that transmit t
7274150 Lighting control circuit for vehicle lighting equipment September 25, 2007
An LED is connected to a power supply circuit, and a Zener diode is reverse-connected to the LED and then packaged in an LED package. When a load of the power supply circuit is lightened due to disconnection in the LED package, an output voltage of the power supply circuit shows a rising
7208880 Vehicular lamp April 24, 2007
There is provided a vehicular lamp that can reduce a high-frequency noise occurring between a primary side and a secondary side of an anode voltage applying coil at low cost. The vehicular lamp includes a cold cathode fluorescent lamp having a cathode, a gate, and an anode, and an anode
7157864 Vehicular lamp, cold cathode fluorescent lamp lighting apparatus, and cold cathode fluorescent l January 2, 2007
There is provided a vehicular lamp that can prevent excess current from flowing between an anode and a cathode at the lighting-up start to prevent a damage and life shortening of a cold cathode fluorescent lamp at low cost. The vehicular lamp includes: a cold cathode fluorescent lamp
6844681 Vehicle light apparatus January 18, 2005
A vehicle light apparatus includes: a power consuming portion provided in parallel with a group of light emitting elements for causing a total power value including power consumed by the lamp to become a normal power value, a breakage detecting portion for detecting a breakage with respe
6819058 Discharge-lamp lighting circuit November 16, 2004
A discharge-lamp lighting circuit designed to decrease the size of a driving circuit for driving switching elements constituting a DC-AC converter circuit 4 therein and to reduce the manufacturing cost likewise. With a bridge type circuit arrangement having a plurality of switching e
6791273 Vehicle lighting fixture September 14, 2004
A vehicle lighting device uses a high-beam discharge lamp and a low-beam discharge lamp, and includes a DC/DC converter circuit, DC/AC converter circuit, starter circuits, and a control circuit for controlling the lighting of the discharge lamps by detecting voltage or current of each
6768275 Discharge lamp lighting circuit July 27, 2004
In a discharge lamp lighting circuit, a DC--DC converting circuit has a switching element to be connected to a transformer and a primary winding thereof, and control is carried out in such a manner that the transformer stores energy while the switching element is set in an ON state in
6759812 Discharge lamp lighting circuit for detecting failure of a switching element July 6, 2004
A discharge lamp lighting circuit 1 has a DC-DC conversion circuit 3 for receiving DC power supply and converting the input voltage into positive and negative output voltages and a DC-AC conversion circuit 4 having a plurality of half bridges for receiving the output voltages of the DC-D
6624594 Discharge lamp lighting circuit September 23, 2003
A capacitor C1 and a switch element SG are provided in the primary side of a transformer TT in a start-up circuit 5. Charge stored in the capacitor C1 is discharged when the switch element SG is turned on. A capacitor C2 and a rectifying element D2 are inserted between the output of a DC
6617809 Discharge lamp lighting circuit September 9, 2003
A lighting circuit carrying out lighting control of plural discharge lamps in which depressing of ripple current and noise, small-sizing, and low cost are realized. Plural DC-DC converting circuits (3_1, 3_2) for converting direct current input voltage to designated direct current vo
6617808 Discharge-lamp lighting circuit September 9, 2003
In a discharge-lamp lighting circuit 1, a DC-DC converter circuit 3 for boosting or lowering DC input voltage Vin from a DC power supply 2, a DC-AC converter circuit 4 for converting the output voltage of the DC-DC converter circuit to AC voltage, and a control circuit 9 for controlling
6617807 Discharge lamp lighting circuit for a plurality of discharge lamps September 9, 2003
In a discharge-lamp lighting circuit for turning on a plurality of discharge lamps, starting circuits 8 for supplying starting pulses to the respective discharge lamps are provided. Each starting circuit 8 has transformers T1 and T2 equal in number to the discharge lamps and each of
6597131 Discharge lamp lighting circuit July 22, 2003
In a lighting circuit 1A, there are provided a DC power circuit 3' for outputting DC voltages having positive and negative polarities and a DC-AC converting circuit 4A for converting the output voltages into AC voltages through a plurality of switching elements and for then supplying the
6583587 Discharge lamp lighting circuit June 24, 2003
A discharge lamp lighting circuit adapted to control a transient power corresponding to a cooling condition or a light-out time of a discharge lamp without using a capacitor or storage device having a large capacity, thereby reducing a cost and a size. Power control in a steady state of
6583585 Discharge lamp lighting circuit June 24, 2003
In a lighting circuit, a lighting control circuit of a discharge lamp and a starting circuit for supplying a starting pulse to the discharge lamp are provided and also, electric power and the starting pulse are supplied through a socket connected to the discharge lamp. The starting circu
6563275 Discharge lamp lighting circuit May 13, 2003
When alternately applying an output voltage of a DC--DC converting circuit 3 to one discharge lamp, an output voltage on a non-load side in outputs having positive and negative polarities which is not applied to the discharge lamp during the light-up of the discharge lamp is restricted t
6552501 Discharge lamp lighting circuit with protection circuit April 22, 2003
In a discharge lamp lighting circuit 1, a control circuit 7 detects a failure in a discharge lamp 8 or the lighting circuit to stop supplying the power to the discharge lamp 8 or stop the operation of the lighting circuit, or lights another light source as a substitute light source for
6534930 Discharge lamp lighting circuit with protection circuit March 18, 2003
A discharge lamp lighting circuit 1 has a DC power supply section 4 for receiving power supply from a DC power supply 2, a DC-AC conversion section 5 for converting an output voltage of the DC power supply section 4 into an AC voltage and then applying the AC voltage to a discharge lamp
6504316 Discharge lamp lighting circuit January 7, 2003
A discharge lamp lighting circuit 1 has a DC power supply circuit 3 for outputting a DC voltage and a DC-AC conversion circuit 4 for converting the output voltage of the DC power supply circuit 3 into an AC voltage and then supplying the AC voltage to a discharge lamp 6. To light the
6489732 Discharge lamp lighting circuit December 3, 2002
The discharge lamp lighting circuit is structured such that positive and negative polarity voltages separately generated from two output terminals of a DC power source circuit are sent to the DC-AC conversion circuit 4. To switch these output voltage, a plurality of switch elements provi
6489730 Discharge-lamp illumination circuit December 3, 2002
A discharge-lamp illumination circuit has a DC power supply circuit, a DC-AC conversion circuit, and a control circuit for controlling a voltage from the DC power supply circuit. The DC power supply circuit has a transformer and a first switching element connected in series with a pr
6486620 Discharge lamp lighting circuit November 26, 2002
A discharge lamp lighting circuit 1 has a DC power supply circuit 3 for outputting a DC voltage, a DC-AC conversion circuit 4 for converting the output voltage of the DC power supply circuit into an AC voltage and then supplying the AC voltage to a discharge lamp 6, and a current detecti
6472830 Discharge lamp lighting circuit October 29, 2002
A discharge lamp lighting circuit is provided with a DC power source circuit, a DC-AC conversion circuit, and start circuits. A primary circuit of a transformer in each start circuit has a capacitor and a switch element. When the voltage across the capacitor exceeds a threshold value,
6472829 Discharge lamp lighting circuit October 29, 2002
In a discharge lamp lighting circuit, there are provided a DC power supply portion for receiving a supply voltage from a DC power supply though an overcurrent protecting means, a DC-AC converter portion for converting an output voltage of the DC power supply portion into an AC voltage to
6437518 Lighting circuit for an electric discharge lamp August 20, 2002
A lighting circuit 1 for an electric discharge lamp. The circuit includes a DC electric power source circuit 3, DC-AC conversion circuit 4 and starting circuit 5. The starting circuit 5 includes a primary circuit of a transformer has a condenser and switch element, and the switch element
6417624 Lighting system for vehicle July 9, 2002
A lighting system provides an auxiliary lighting circuit for turning on an auxiliary light source in place of the discharge lamp if the abnormality in the lighting circuit is detected.
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