Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Asahi Kogaku Kogyo K.K. Patents
Assignee:
Asahi Kogaku Kogyo K.K.
Address:
Tokyo, JP
No. of patents:
175
Patents:


1 2 3 4


Patent Number Title Of Patent Date Issued
RE35340 Packing material for liquid chromatography October 1, 1996
Column packing materials useful in applications such as liquid chromatography, as well as a process for producing such a packing material are described. A first aspect of the invention concerns a column packing material composed of a spherical substrate having a coating of a calcium
RE34156 Scanning optical system for use in a laser beam printer January 5, 1993
An optical system particularly for a laser beam printer comprising a semiconductor laser, a collimating lens, a cylindrical lens having curvature in the sub-scanning cross section, a deflector and anamorphic scanning lens system concentrating the light on a scanning plane. The anamor
RE34037 Support for biomedical implant device August 18, 1992
A support for a biomedical implant device in which the support has a surface layer composed of a biocompatible calcium phosphate material such as sintered hydroxyapatite with a porosity of 50-60% and pore size of 0.5-500 micrometers. Preferably, the surface layer is formed with proje
D453173 Casing for binoculars January 29, 2002
D450337 Cable release controller for camera November 13, 2001
D449327 Single-lens reflex digital camera body October 16, 2001
D412005 Digital camera body July 13, 1999
D342961 35 mm camera January 4, 1994
D342753 Electronic flash for a camera December 28, 1993
D341612 Lens for a single-lens reflex camera November 23, 1993
D341611 Lens for a single-lens reflex camera November 23, 1993
D341610 Lens for single-lens reflex camera November 23, 1993
D339366 35 mm camera September 14, 1993
D338479 Lens for single-lens reflex camera August 17, 1993
D338219 Lens for single-lens reflex camera August 10, 1993
D338198 Digital video disk player/recorder for static images August 10, 1993
D338028 Lens for single-lens reflex camera August 3, 1993
D337777 Lens for a single-lens reflex camera July 27, 1993
D337776 Lens for a single-lens reflex camera July 27, 1993
D337775 Lens for a single-lens reflex camera July 27, 1993
D335680 35 mm camera May 18, 1993
D331589 Lens for a single-lens reflex camera December 8, 1992
D331576 Barcode scanner December 8, 1992
D329656 Single-lens reflex camera body September 22, 1992
D328276 Combined AC adapter and battery charger July 28, 1992
D322977 35 mm camera January 7, 1992
D320616 Laser printer October 8, 1991
D319436 Barcode reader August 27, 1991
D319228 Barcode reader August 20, 1991
D297242 Telescope August 16, 1988
5715101 Focusing apparatus for a surveying instrument February 3, 1998
A focusing apparatus for a surveying instrument including an objective lens, a focusing lens and a reticle. The focusing lens is movable in an optical axis direction, by a rotating shaft member which is rotated by a motor, to form an image, of an object to be surveyed, on the reticle.
5537265 Electronic still camera with automatic mode setting device July 16, 1996
An electronic still camera having a first switch for selecting either a field record mode or a frame record mode, and a second switch for selecting either a normal mode or a high-band mode, further includes a control circuit which sets the frame record mode either when the high-band
5282089 Zoom lens system January 25, 1994
The improved zoom lens system includes, in order from the object side, a first lens group having a positive power, a second and a third lens group each having a negative power and a fourth lens group having an overall positive power, the fourth lens group being composed of a first sub-gr
5281404 Composition for forming calcium phosphate type setting material and process for producing settin January 25, 1994
A composition for forming a calcium phosphate type setting material comprising(1) powder comprising at least one of .alpha.-tricalcium phosphate and tetracalcium phosphate; and(2) a setting solution comprising an aqueous acidic solution having dissolved therein at least one polysaccharid
5281045 Movable member positioning mechanism January 25, 1994
A movable member positioning mechanism in which the number of components of lock and click mechanisms is decreased, and the number of assembling steps is decreased accordingly. In the movable member positioning mechanism, a remote controller 20 is movably arranged along an inner wall 11
5280390 Zoom lens system January 18, 1994
A zoom lens system includes, in order from the object side, the first lens group having a positive focal length and the second lens group having a negative focal length. The system performs zooming by changing the distance between the first and second lens groups. The first lens group
5278699 Zoom lens system January 11, 1994
A zoom lens system for a compact camera, having a zoom ratio of approximately 2 or 3 and a smaller overall lens length at the telephoto end than the focal distance at the telephoto end, and which optically experiences only a small focus shift due to environmental changes such as temp
5277172 Light source device for an endoscope January 11, 1994
A light source control device for an endoscope having a light source for emitting light to be incident on a light guide, a stop mechanism for varying the quantity of light to be incident on the light guide by interrupting an optical path of light, and a control device for controlling
5267086 Soft focus lens system November 30, 1993
An autofocusable soft focus lens system includes a movable front lens group having a positive power, and a stationary rear lens group having a negative power.
5260833 Zoom lens system November 9, 1993
A zoom lens system is disclosed in which a high zoom ratio of 2.5 or more, that is short in the overall lens length, that is composed of a smaller number of lens elements, that will experience less deterioration in performance due to manufacturing or assembly errors or less focus shift
5253111 Cemented plastic lens October 12, 1993
A cemented plastic lens is formed of two plastic lenses made of dissimilar synthetic resin materials having different coefficients of thermal expansion. The lenses have mating surfaces that have macroscopically the same curvature, and the mating surfaces are bonded together with a soft
5251069 Imaging lens system October 5, 1993
An imaging lens system is disclosed which comprises a focusing lens and a correcting lens which has aspherical surfaces on both side. Usually, the focusing lens if located on the object side but the correcting lens may be disposed on the object side.
5249011 Automatic focusing method September 28, 1993
An automatic focusing method is disclosed with which a plurality of selected objects can be held within the focusing range of the photographing lens of a camera. For each of object for which it is desired to keep within the focusing range, a focusing detection operation is carried ou
5247394 Reading zoom lens system September 21, 1993
The improved reading zoom lens system includes, in order from the object side, a front group that has a positive power and that is of a four-unit-six-element composition and a rear group that has a positive power and that is composed of two elements, which lens system is capable of z
5235411 Signal processing apparatus with improved alignment switching between color difference signals August 10, 1993
A signal generator 51 supplies a switching signal to a color difference signal output switch 44 in response to a line index signal LI and/or a horizontal synchronizing signal HD, thus avoiding the outputting of a signal obtained by adding two color difference signals.
5233474 Wide-angle lens system August 3, 1993
A retro-focus wide-angle lens system having, in order from the object side, a negative power front group and a positive power rear group having a diaphragm stop. The front group comprises a positive first lens element and a negative meniscus second lens element having a convex surface
5225927 Real image type finder having cemented lens with at least one resin lens element July 6, 1993
A real image type view finder comprising at least one cemented lenses. Of the lens components constituting the cemented lens, a lens component is made of resin. The lens component may be made of material of high transmittance to ultraviolet rays.
5223979 Zoom lens system June 29, 1993
A four-group zoom lens system that achieves satisfactory brightness and zoom ratio for practical applications and yet is compact and can be manufactured at low cost. The lens system includes in order from the object to the image side, a positive first lens group, a negative second le
5222056 Optical pickup apparatus having a compact structure June 22, 1993
An optical pickup apparatus includes a lens holder, a focusing coil mounted on the lens holder and passing through a gap between first and second yoke portions, and a tracking coil mounted on the lens holder in such a manner that it does not pass through the gap but passes adjacent a thi
5221995 Zoom lens system June 22, 1993
A zoo comprises, in order from the object side, a first lens group having a positive refractive power that moves along the optical axis for focusing, a second lens group having a negative refractive power that moves along the optical axis for zooming, a third lens group having a negative
1 2 3 4

 
 
  Recently Added Patents
Thermal recording method and system employing edge printing
Ear plug
ZIF socket connector with pop-up pick-up cap when cover is moved to open position
Pixel device of a transflective-type liquid crystal panel
System and method for user navigation
Computer-implemented methods, carrier media, and systems for detecting defects on a wafer based on multi-core architecture
Footwear with a bladder type stabilizer
  Randomly Featured Patents
Hot wire air flow meter
System for informing users about urban transport
Rotatable mechanical hold-down finger for holding a circuit board in a test fixture
Electrode materials with high surface conductivity
Reticulation-free water-dispersible coating composition for food substrates
Method and apparatus for controlling the shutdown of computer systems by using service utilization information and examining a dependency relationship between the computers
Multilayer deposition method for forming Pb-doped Bi-Sr-Ca-Cu-O Superconducting films
Apparatus for determining shape of contact patch and contact pressure of tires
Harmonic drive for digital step motor
Method of fabrication SOI devices with accurately defined monocrystalline source/drain extensions