Patents by Inventor Takeshi Fujimoto
Takeshi Fujimoto 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: 7180018Abstract: In a switch device including: a push button disposed in an opening of a switch case and operable to be tilted in any one of a plurality of directions by being pushed at an outer edge side; a rubber contact that forces the push button to a position before pushing; and a movable contact and a fixed contact connectable to each other by each pushing operation on the push button, a convex portion and a concave portion that can be spaced apart from each other are separately provided to the push button and the switch case for rotational support and positional regulation of the push button with respect to the switch case at the time of a tilting operation by each pushing.Type: GrantFiled: June 23, 2005Date of Patent: February 20, 2007Assignees: Niles Co., Ltd., Nissan Motor Co., Ltd.Inventors: Yutaka Sekino, Hideji Onodera, Takeshi Fujimoto
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Publication number: 20050284736Abstract: In a switch device including: a push button disposed in an opening of a switch case and operable to be tilted in any one of a plurality of directions by being pushed at an outer edge side; a rubber contact that forces the push button to a position before pushing; and a movable contact and a fixed contact connectable to each other by each pushing operation on the push button, a convex portion and a concave portion that can be spaced apart from each other are separately provided to the push button and the switch case for rotational support and positional regulation of the push button with respect to the switch case at the time of a tilting operation by each pushing.Type: ApplicationFiled: June 23, 2005Publication date: December 29, 2005Inventors: Yutaka Sekino, Hideji Onodera, Takeshi Fujimoto
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Publication number: 20050177319Abstract: In an optical communications module comprising one or more dielectric substrates equipped with an optical transmitter section, an optical receiver section or an optical transceiver section, and a chassis encasing all of them, a metal part is formed on one side of at least one of the dielectric substrates such that the metal part constitutes the whole or a part of the exterior surface of the chassis so that the length of heat conduction from a dielectric substrate with heat-generating components installed thereon can be minimized so as to efficiently release heat through the metal part to outside, curbing a temperature increase within the chassis. Thus, the optical communications module can exhibit excellent performance.Type: ApplicationFiled: July 28, 2003Publication date: August 11, 2005Inventors: Takeshi Fujimoto, Yoshiki Kuhara, Hiromi Nakanishi, Keiichi Fukuda
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Patent number: 6874485Abstract: A fuel evaporation control system is connected to an engine control system in which an air-fuel ratio in mixture gas supplied to an engine is controlled to an optimum level. Fuel evaporated from a fuel tank is absorbed by a canister, and the absorbed fuel is purged into the engine. Deterioration of the canister in its air-permeability is detected based on measured pressure in the fuel evaporation control system or calculated density in the purge gas, both the pressure and the density being measured or calculated under two different amounts of purge gas flow. Deterioration of the canister in its fuel-absorbing ability is also detected based on the purge gas density.Type: GrantFiled: April 7, 2003Date of Patent: April 5, 2005Assignee: Denso CorporationInventor: Takeshi Fujimoto
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Patent number: 6808316Abstract: An optical communication module includes (a) at least one light-emitting device, at least one light-receiving device, or a combination of these; (b) an optically coupling means coupled optically with the device or each device; (c) an electric-circuit part connected to the device or each device; (d) multiple layers of electroconductive media supporting the device or devices, the optically coupling means or these optically coupling means, and the electric-circuit part or parts; and (e) a connector portion formed at the end portion of each of the electroconductive media. The insertion of the next-stage circuit substrate between the connector portions enables the electrical connection between the module and the next-stage circuit substrate having a multitude of leads without requiring a large space. An insulating spacer placed between the layers of the electroconductive media secures the electrical and thermal insulation. The module has a property of high-speed response.Type: GrantFiled: June 21, 2002Date of Patent: October 26, 2004Assignee: Sumitomo Electric Industries, Ltd.Inventors: Hiromi Nakanishi, Yoshiki Kuhara, Takeshi Okada, Yoichiro Yamaguchi, Takeshi Fujimoto
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Publication number: 20040099233Abstract: An engine start is beforehand detected when a preparation operation to engine start is detected. When the preparation operation is detected based on a seat switch indicating that a driver seats himself on a driver seat, control of an electric current for a heater of an air/fuel ratio sensor is started. The air/fuel ratio sensor is then activated prior to the engine start. Failure diagnosis is conducted on a function for detecting the preparation operation. Namely, the seat switch is diagnosed as having failure, for instance, by the following. Even while a vehicle travels, the seat switch is in an OFF state indicating that no driver is seated. This structure can restrict the engine start without the air/fuel ratio sensor being pre-heated. It can also restrict deteriorating of emission.Type: ApplicationFiled: November 13, 2003Publication date: May 27, 2004Applicant: DENSO CORPORATIONInventors: Takeshi Fujimoto, Keiji Wakahara
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Patent number: 6719568Abstract: The electric circuit unit has a module having an electric or optical signal processing function. Between two parallel circuit boards, the module is bonded thereto and has an electric connection structure or an optical connection structure. This provides a small-size electric circuit unit with component elements mounted at high density.Type: GrantFiled: December 17, 2002Date of Patent: April 13, 2004Assignee: Sumitomo Electric Industries, Ltd.Inventors: Takeshi Fujimoto, Hiromi Nakanishi
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Publication number: 20030183206Abstract: A fuel evaporation control system is connected to an engine control system in which an air-fuel ratio in mixture gas supplied to an engine is controlled to an optimum level. Fuel evaporated from a fuel tank is absorbed by a canister, and the absorbed fuel is purged into the engine. Deterioration of the canister in its air-permeability is detected based on measured pressure in the fuel evaporation control system or calculated density in the purge gas, both the pressure and the density being measured or calculated under two different amounts of purge gas flow. Deterioration of the canister in its fuel-absorbing ability is also detected based on the purge gas density.Type: ApplicationFiled: April 7, 2003Publication date: October 2, 2003Applicant: DENSO CORPORATIONInventors: Takeshi Fujimoto, Keiji Wakahara
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Publication number: 20030124913Abstract: The electric circuit unit has a module having an electric or optical signal processing function. Between two parallel circuit boards, the module is bonded thereto and has an electric connection structure or an optical connection structure. This provides a small-size electric circuit unit with component elements mounted at high density.Type: ApplicationFiled: December 17, 2002Publication date: July 3, 2003Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takeshi Fujimoto, Hiromi Nakanishi
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Patent number: 6564782Abstract: A fuel evaporation control system is connected to an engine control system in which an air-fuel ratio in mixture gas supplied to an engine is controlled to an optimum level. Fuel evaporated from a fuel tank is absorbed by a canister, and the absorbed fuel is purged into the engine. Deterioration of the canister in its air-permeability is detected based on measured pressure in the fuel evaporation control system or calculated density in the purge gas, both the pressure and the density being measured or calculated under two different amounts of purge gas flow. Deterioration of the canister in its fuel-absorbing ability is also detected based on the purge gas density.Type: GrantFiled: February 21, 2002Date of Patent: May 20, 2003Assignee: Denso CorporationInventors: Takeshi Fujimoto, Keiji Wakahara
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Publication number: 20030002820Abstract: An optical communication module includes (a) at least one light-emitting device, at least one light-receiving device, or a combination of these; (b) an optically coupling means coupled optically with the device or each device; (c) an electric-circuit part connected to the device or each device; (d) multiple layers of electroconductive media supporting the device or devices, the optically coupling means or these optically coupling means, and the electric-circuit part or parts; and (e) a connector portion formed at the end portion of each of the electroconductive media. The insertion of the next-stage circuit substrate between the connector portions enables the electrical connection between the module and the next-stage circuit substrate having a multitude of leads without requiring a large space. An insulating spacer placed between the layers of the electroconductive media secures the electrical and thermal insulation. The module has a property of high-speed response.Type: ApplicationFiled: June 21, 2002Publication date: January 2, 2003Inventors: Hiromi Nakanishi, Yoshiki Kuhara, Takeshi Oakada, Yoichiro Yamaguchi, Takeshi Fujimoto
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Publication number: 20020112703Abstract: A fuel evaporation control system is connected to an engine control system in which an air-fuel ratio in mixture gas supplied to an engine is controlled to an optimum level. Fuel evaporated from a fuel tank is absorbed by a canister, and the absorbed fuel is purged into the engine. Deterioration of the canister in its air-permeability is detected based on measured pressure in the fuel evaporation control system or calculated density in the purge gas, both the pressure and the density being measured or calculated under two different amounts of purge gas flow. Deterioration of the canister in its fuel-absorbing ability is also detected based on the purge gas density.Type: ApplicationFiled: February 21, 2002Publication date: August 22, 2002Inventors: Takeshi Fujimoto, Keiji Wakahara
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Publication number: 20020086066Abstract: An improved skin cleaning composition made by introducing about 0.7% to about 2.0% by weight gas-activated charcoal to a base skin cleaning composition.Type: ApplicationFiled: December 29, 2000Publication date: July 4, 2002Inventors: Takeshi Fujimoto, Hidenori Yokoi
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Patent number: 6148803Abstract: A leakage diagnosing apparatus for an evaporated gas purge system, which executes purge system leakage diagnosis based on a detected pressure change amount and an introduced pressure which is introduced into a part of the purge system including at least a fuel tank and a canister. The detected pressure change amount is obtained by detecting pressure in the part of the purge system after such part of the purge system is hermetically sealed. Accordingly, the reliability of the leakage diagnosis is improved because an erroneous diagnosis caused by the introduced pressure is prevented. The detected pressure change amount may be compensated based on the introduced pressure into the sealed gas purge system. Accordingly, an erroneous leakage determination is prevented, and the reliability of leakage determination is improved.Type: GrantFiled: December 3, 1998Date of Patent: November 21, 2000Assignee: Denso CorporationInventors: Yoshihiro Majima, Takeshi Fujimoto, Keiji Wakahara, Junya Morikawa, Shigenori Isomura, Makoto Miwa
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Patent number: 6082337Abstract: When a diagnosis execution condition is established, a canister closure valve is closed, thereafter, a purge control valve is opened, a purge control valve is closed in a state where negative pressure is introduced into an evaporated gas system to thereby maintain the evaporated gas system in a hermetically-sealed state and the hermetically-sealed state is continued until abnormality diagnosis is finished. Time period for maintaining the evaporated gas system in the hermetically-sealed state is divided into three time periods of a pressure change determining time period at a first time, an awaiting time period and a pressure change determining time period at a second time.Type: GrantFiled: July 10, 1998Date of Patent: July 4, 2000Assignee: Denso CorporationInventors: Takeshi Fujimoto, Masaaki Nakayama, Yasuo Mukai, Hisayo Dohta, Keiji Wakahara, Junya Morikawa, Makoto Miwa