Patents by Inventor Takumi Hayashi
Takumi Hayashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7030626Abstract: A high-frequency oscillation proximity sensor with an improved detection sensitivity uses, as a detection coil 11, a two-thread coil formed of substantively two coil conductors joined together at their first ends to form a joint connection end and twisted together, one of the two coil conductors being used as a resonance circuit coil L1 and the other as a copper resistance compensation coil L2, and comprises a drive circuit 12 for supplying a drive current to the joint connection end of the two-thread coil to thereby drive the detection coil to oscillate, a buffer 13 for taking out an oscillating output voltage generated at the joint connection end of the two-thread coil, and a phase shift circuit 15 for turning the phase of the oscillating output voltage taken out by the buffer by a predetermined angle and feeding it back to the copper resistance compensation coil to thereby negate the copper resistance of the two-thread coil.Type: GrantFiled: June 17, 2002Date of Patent: April 18, 2006Assignee: Yamatake CorporationInventors: Takumi Hayashi, Shinichi Kawai, Hiroshi Hatanaka
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Patent number: 7014752Abstract: A water treatment control system for minimizing trihalomethane formation includes chlorine injection equipment having a plurality of chlorine injectors (11d, 12, 13), a fluorescence analyzer 7 provided on the upstream of the chlorine injectors, and a water flowmeter 6. An chlorine injection rate necessary to reduce a trihalomethane formation potential is calculated by a chlorine injection rate calculating apparatus 14a based on a measured value from the fluorescence analyzer 7. An chlorine injection amount from the chlorine injectors is controlled by chlorine injection amount control apparatuses 15a–15c based on the chlorine injection rate and a measured value from the flowing water flowmeter 6.Type: GrantFiled: August 14, 2003Date of Patent: March 21, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Seiichi Murayama, Futoshi Kurokawa, Masao Kaneko, Kotaro Iyasu, Kenji Taguchi, Kie Kubo, Shojiro Tamaki, Akira Hiramoto, Takumi Hayashi, Nobuyoshi Kaiga
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Patent number: 7012768Abstract: An optical pick-up allows a lens to be supported at high dimensional accuracy for a high-density recording medium, and suppresses resonance for a high-speed access. The optical pick-up includes a supporting shaft, and a lens holder which fits on a supporting shaft rotatably, wherein the supporting shaft is formed of ceramics containing zirconia, and wherein the lens holder is formed of a liquid crystal resin composition. The optical-pickup includes a lens holder having a shaft hole which fits on a rotating shaft and a plurality of object lens holes, wherein the lens holder is a molded product of a resin composition of a liquid crystal resin or a polyphenylene ether resin mixed with a fibrous filler. The molded product has flexural elastic modulus of 10 GPa or more. The lens holder includes a bearing part formed vertically to a lens receiving surface with an excellent inner diameter roundness and excellent mechanical strength.Type: GrantFiled: December 20, 2001Date of Patent: March 14, 2006Assignee: NTN CorporationInventors: Kazuo Hirose, Takumi Hayashi, Kiyoshi Ishii
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Publication number: 20050281498Abstract: A slide bearing is proposed which rotatably supports a rotary shaft of an impeller in a cooling water circulation pump mounted to a fuel cell. The slide bearing is formed of a synthetic resin containing no metal ions such as polyetherketone resin. This prevents impurities originating from the slide bearing from being dissolved into cooling water for the fuel cell.Type: ApplicationFiled: June 21, 2005Publication date: December 22, 2005Inventors: Takumi Hayashi, Satoru Fukuzawa
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Publication number: 20050015270Abstract: A document taking-over system includes a terminal device provided with an electronic pen which gets information written by hand on a document prepared to be able to specify a kind thereof together with kind information of the document as electronic data and for transmitting the electronic data, a document taking-over apparatus for processing the electronic data to produce it as document information of XML format, a correspondence retrieval apparatus for transmitting connection information to the document taking-over apparatus to the terminal device, and a system disposed at a latter stage to utilize the document information processed by the document taking-over apparatus, which are connected to one another through a network.Type: ApplicationFiled: May 20, 2004Publication date: January 20, 2005Inventors: Yosuke Kato, Takumi Hayashi, Kenji Fujii
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Publication number: 20040160430Abstract: In an electronic pen system where it is required to identify each sheet of paper having an identical dot pattern, a document for inputting an identification code is prepared, where a code obtained by conversion according to a position of dot pattern is predetermined, and according to a combination of a plurality of codes determined based on the contents entered in the document, a type of the document is identified.Type: ApplicationFiled: August 15, 2003Publication date: August 19, 2004Inventors: Minoru Tokunaga, Kenji Fujii, Masatoshi Furuya, Takumi Hayashi
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Publication number: 20040150412Abstract: A high-frequency oscillation proximity sensor with an improved detection sensitivity uses, as a detection coil 11, a two-thread coil formed of substantively two coil conductors joined together at their first ends to form a joint connection end and twisted together, one of the two coil conductors being used as a resonance circuit coil L1 and the other as a copper resistance compensation coil L2, and comprises a drive circuit 12 for supplying a drive current to the joint connection end of the two-thread coil to thereby drive the detection coil to oscillate, a buffer 13 for taking out an oscillating output voltage generated at the joint connection end of the two-thread coil, and a phase shift circuit 15 for turning the phase of the oscillating output voltage taken out by the buffer by a predetermined angle and feeding it back to the copper resistance compensation coil to thereby negate the copper resistance of the two-thread coil.Type: ApplicationFiled: December 16, 2003Publication date: August 5, 2004Inventors: Takumi Hayashi, Shinichi Kawai, Hiroshi Hatanaka
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Publication number: 20040045880Abstract: A water treatment control system using a fluorescence analyzer includes an activated carbon injection equipment 4 having an activated carbon injector 4a, a fluorescence analyzer 7 provided on the upstream of the activated carbon injector 4a, and a flowing water flowmeter 6. An activated carbon injection rate necessary to reduce a trihalomethane formation potential is calculated by an activated carbon injection rate calculating apparatus 8 based on a measured value from the fluorescence analyzer 7. An activated carbon injection amount from the activated carbon injector 4a is controlled by an activated carbon injection amount control apparatus 9 based on the activated carbon injection rate and a measured value from the flowing water flowmeter 6.Type: ApplicationFiled: August 14, 2003Publication date: March 11, 2004Applicant: Kabushiki Kaisha ToshibaInventors: Seiichi Murayama, Futoshi Kurokawa, Masao Kaneko, Kotaro Iyasu, Kenji Taguchi, Kie Kubo, Shojiro Tamaki, Akira Hiramoto, Takumi Hayashi, Nobuyoshi Kaiga
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Patent number: 6638421Abstract: A water treatment control system using a fluorescence analyzer includes an activated carbon injection equipment 4 having an activated carbon injector 4a, a fluorescence analyzer 7 provided on the upstream of the activated carbon injector 4a, and a flowing water flowmeter 6. An activated carbon injection rate necessary to reduce a trihalomethane formation potential is calculated by an activated carbon injection rate calculating apparatus 8 based on a measured value from the fluorescence analyzer 7. An activated carbon injection amount from the activated carbon injector 4a is controlled by an activated carbon injection amount control apparatus 9 based on the activated carbon injection rate and a measured value from the flowing water flowmeter 6.Type: GrantFiled: November 29, 2001Date of Patent: October 28, 2003Assignee: Kabushiki Kaisha ToshibaInventors: Seiichi Murayama, Futoshi Kurokawa, Masao Kaneko, Kotaro Iyasu, Kenji Taguchi, Kie Kubo, Shojiro Tamaki, Akira Hiramoto, Takumi Hayashi, Nobuyoshi Kaiga
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Patent number: 6484753Abstract: In a single lever mixing valve, having a sliding member sliding on a lever holder, for adjusting an amount and temperature of discharge water by rotating a disk actuating stem on an axis thereof or by operating a handle lever for inclining the disk actuating stem. A fit-in hole is so formed on the handle lever that the disk actuating stem is loosely fitted therein, with a gap formed between a side surfaced of the disk actuating stem and a gap-defining inner surface of the handle lever; a spacer so sized as to close the gap is provided; a spacer insertion hole is formed in the handle lever such that the spacer insertion hole is open on an outer surface of the handle lever; and the spacer is inserted into the spacer insertion hole to fix the disk actuating stem fitted in the spacer insertion hole.Type: GrantFiled: November 20, 2000Date of Patent: November 26, 2002Assignee: NTN CorporationInventors: Takahiro Shimizu, Satoru Fukuzawa, Takumi Hayashi, Shinji Kosaki
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Publication number: 20020135893Abstract: There is disclosed an optical pick-up which allows a lens to be supported at high dimensional accuracy for a high-density recording medium, and suppresses resonance for a high-speed access. Also, there is disclosed a lens holder comprising a bearing part formed vertically to a lens receiving surface with an excellent inner diameter roundness and excellent mechanical strength.Type: ApplicationFiled: December 20, 2001Publication date: September 26, 2002Inventors: Kazuo Hirose, Takumi Hayashi, Kiyoshi Ishii
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Publication number: 20020104787Abstract: A water treatment control system using a fluorescence analyzer includes an activated carbon injection equipment 4 having an activated carbon injector 4a, a fluorescence analyzer 7 provided on the upstream of the activated carbon injector 4a, and a flowing water flowmeter 6. An activated carbon injection rate necessary to reduce a trihalomethane formation potential is calculated by an activated carbon injection rate calculating apparatus 8 based on a measured value from the fluorescence analyzer 7. An activated carbon injection amount from the activated carbon injector 4a is controlled by an activated carbon injection amount control apparatus 9 based on the activated carbon injection rate and a measured value from the flowing water flowmeter 6.Type: ApplicationFiled: November 29, 2001Publication date: August 8, 2002Inventors: Seiichi Murayama, Futoshi Kurokawa, Masao Kaneko, Kotaro Iyasu, Kenji Taguchi, Kie Kubo, Shojiro Tamaki, Akira Hiramoto, Takumi Hayashi, Nobuyoshi Kaiga
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Patent number: 5833723Abstract: In a hydrogen generating apparatus comprising a housing (10) in which a catalyst (11) is filled up into an inner space (10a), a supplying tube (12) opening to the inner space, a blowing tube (14) by which a reformed gas generated in the inner space with reacting is removed from the inner space, the methanol supplying means (20, 21) connected to the supplying tube and the oxygen supplying means (30, 31, 32) connected to the supplying tube, the heating means (13) placed in near an opening part of the supplying tube are provided and when starting, a time period for obtaining the sufficient amounts of hydrogen generated can be shorten.Type: GrantFiled: November 15, 1996Date of Patent: November 10, 1998Assignee: Aisin Seiki Kabushiki KaishaInventors: Yasuo Kuwabara, Hiroshige Ota, Akira Matsuoka, Takumi Hayashi, Nobuhisa Watanabe
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Patent number: 3947749Abstract: A high voltage generator suitably applied to the television receiver has a secondary winding divided into three or more units of different numbers of turns by a plurality of diodes. Each secondary winding unit has a different distance from the primary winding, so that the winding units are tuned to different high harmonics of the fifth or higher resonance orders, or some of the winding units to the same harmonic of fifth or high order and the remaining to harmonics.Type: GrantFiled: January 31, 1975Date of Patent: March 30, 1976Assignee: Hitachi, Ltd.Inventors: Isamu Kimura, Takumi Hayashi