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Hiroyuki Umezawa Patents
Inventor:
Umezawa; Hiroyuki
Address:
Gunma, JP
No. of patents:
13
Patents:




Patent Number Title Of Patent Date Issued
7396458 Wastewater treatment equipment July 8, 2008
A wastewater treatment equipment of an embodiment of the present invention neutralizes a WTBT 12 by introducing the WTBT 12 containing fluorine components to a first treatment tank 11A and by introducing an NaOH solution from a second path P2 and so on. The fluorine components contai
7381323 Filtration apparatus June 3, 2008
A filtration apparatus is provided which is easy to maintain, manage and which enables preservation of filtration characteristics due to the fact that filtration is carried out by use of a gelatinous filter apparatus. In the filtration apparatus, filtration characteristics can be maintai
7300592 Water treatment device November 27, 2007
An object is to provide a water treatment device which can treat for-treatment water containing fluorine components into a state adaptable to the environment and which can treat nitrogen compounds without influencing a concentration of the for-treatment water containing the nitrogen
7157012 Water treatment device and water treatment method using the same January 2, 2007
Object of the preferred embodiment is to remove sol-form microparticles and nitrogen components contained in CMP wastewater. Sol-form microparticle components contained in CMP wastewater are removed by a filtration treatment using a filter device 13, having a gel-form second filter.
7156962 Electrolyzing electrode and production method therefor and electrolysis method using electrolyzi January 2, 2007
There are provided an electrode for electrolysis which takes into consideration safety to human bodies and environmental pollution upon disposal of the electrode, produces ozone with high efficiency and has excellent durability, a production process of the electrode, and an active ox
7014770 Filtering method of a colloidal solution March 21, 2006
A filtering method is directed to a wastewater of CMP process, which includes sub-micrometer particles suspended as colloid. The wastewater is filtered by a gel membrane formed on a surface of plastic filter. A coagulant or a pH adjuster is added to the wastewater so that the sub-mic
6830679 Filtration device December 14, 2004
A filtration device is provided in which wastewater, in the form of a colloidal solution containing microparticles, is guided to tank, circulated, and filtrated using a second filter. The device includes a gel film that is formed by suction on the surface of a first filter. The sucti
6010344 Ejection protection mechanism for card media January 4, 2000
A motor driven ejection system responsive to control signals so as to allow the insertion and/or ejection of a card under computer automatic control. The ejection system has a motor responsive to control signals to cause forward/reverse movements of the motor or render the motor stationa
5879175 Loading/unloading unit for card media March 9, 1999
A card (12) is inserted by pushing against a rubber roller (44) at the leading end of the card (12). The action of the rubber roller (44) pivots an actuation lever (24) to actuate a switch (36), which, in turn, starts a motor (16). The card (12) is moved inwardly by the rotation of the r
5815468 Dual player automotive audio system capable of playing back two different types of recording med September 29, 1998
An automotive data device, such as an audio player, for playing recording media of a different size includes a housing member housing a first player unit and a second player unit in a stacked arrangement. Each of the player units have insertion slots. A movable operating panel for contro
4227224 Cassette tape recording/reproducing apparatus October 7, 1980
A cassette tape recording/reproducing apparatus which is so adapted that after a cassette is horizontally pushed deep into a pack guide, the pack guide is lowered in a vertical direction to set the cassette in a recording/reproducing position on a bottom plate of the apparatus, which
4224647 Magnetic tape-record/playback apparatus September 23, 1980
A magnetic tape-record/playback apparatus having a mechanism for fast forward/rewind operation, which is formed of an ejecting lever and plate which are provided separately from each other but slidably connected with each other, a spring provided between said ejecting lever and a frame o
4209812 Tape player June 24, 1980
A tape player having two belts wound around a motor shaft, with one further wound around flywheels provided with capstans and another further wound around a reel shaft drive system, said flywheels and said reel shaft drive system being adapted to be separately rotated by the different be


 
 
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