Patents by Inventor Takahiro Kikuchi
Takahiro Kikuchi 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).
-
Patent number: 8044632Abstract: A power conversion device includes a converter that converts AC power to DC power, a converter controller that controls an output voltage of the converter, an inverter that converts the DC power to AC power at a variable frequency, an inverter controller that controls an output frequency of the inverter, and a current detector that detects an AC current on an input side of the converter. It is configured in such a manner that the inverter controller adjusts a slip frequency of the induction motor in response to a fluctuation of the AC current on the input side of the converter detected by the current detector. It thus becomes possible to suppress a beat current in an output current of the inverter at the occurrence of a load fluctuation as well as a power supply voltage fluctuation.Type: GrantFiled: October 19, 2006Date of Patent: October 25, 2011Assignee: Mitsubishi Electric CorporationInventors: Hideo Obi, Takahiro Kikuchi, Takeshi Tanaka, Daisuke Ito, Keita Hatanaka
-
Publication number: 20110244726Abstract: An opening (K) is formed in one side surface of a housing (1) to expose cavities (5) inside. Retaining portions (8) are formed in the cavities (5) to prevent female terminal fittings (7) accommodated from above the opening (K) from coming out backward by engaging the female terminal fittings (7). A cover member (2) includes a cover (15), which is slid along a plane direction of the opening (K) from a rear side of the housing (1). When the opening (K) is closed by the cover (15), thinned portions (36) of the cover (15) slip under locking walls (19) to prevent the cover (15) from coming out upward. Further, a lock arm (28) of the housing (1) is engaged with a locking edge of the cover member (2), whereby the cover member (2) is mounted on the connector housing (1).Type: ApplicationFiled: April 5, 2011Publication date: October 6, 2011Applicant: SUMITOMO WIRING SYSTEMS, LTD.Inventor: Takahiro Kikuchi
-
Patent number: 7813748Abstract: A group communications switching method is disclosed. The method includes the steps of: maintaining a voice call between a first subscriber terminal and a second subscriber terminal when it becomes necessary to perform group communications while the voice call is in progress; starting a group communications call by the first subscriber terminal so as to call at least a group communications member other than the first subscriber terminal and the second subscriber terminal; and disconnecting the voice call between the first subscriber terminal and the second subscriber terminal when the group communications call is established.Type: GrantFiled: November 16, 2006Date of Patent: October 12, 2010Assignee: Fujitsu LimitedInventors: Takahito Suzuki, Saiki Kawamura, Naoyuki Kakizaki, Yayoi Itoh, Kiyomi Hasesaka, Hiroyasu Taguchi, Hiroki Yokoyama, Yoshikazu Takeda, Kiyoshi Hirouchi, Satoru Abe, Takahiro Kikuchi, Nobuaki Kitazumi
-
Publication number: 20100231159Abstract: A power conversion device includes a converter that converts AC power to DC power, a converter controller that controls an output voltage of the converter, an inverter that converts the DC power to AC power at a variable frequency, an inverter controller that controls an output frequency of the inverter, and a current detector that detects an AC current on an input side of the converter. It is configured in such a manner that the inverter controller adjusts a slip frequency of the induction motor in response to a fluctuation of the AC current on the input side of the converter detected by the current detector. It thus becomes possible to suppress a beat current in an output current of the inverter at the occurrence of a load fluctuation as well as a power supply voltage fluctuation.Type: ApplicationFiled: October 19, 2006Publication date: September 16, 2010Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Hideo Obi, Takahiro Kikuchi, Takeshi Tanaka, Daisuke Ito, Keita Hatanaka
-
Patent number: 7788108Abstract: A period required for a time-consuming cross-contamination test is cut down or omitted, and a burden imposed on the customer by the costs of samples, reagents, etc. used in the test are reduced. A data failure caused by cross-contamination can be efficiently prevented. A maintenance service office establishes a connection via a communication line between a computer installed in the maintenance service office for maintenance of automatic analyzers and a customer's automatic analyzer or a personal computer placed in a customer's facility. The maintenance service office receives information regarding cross-contamination from reagent manufacturers and other customers (such as clinical examination rooms or centers) and validates it. The validated information is transmitted from the maintenance service office to the customer's automatic analyzer or personal computer via the communication line.Type: GrantFiled: November 20, 2003Date of Patent: August 31, 2010Assignees: Hitachi High-Technologies Corporation, Hitachi Science Systems, Ltd.Inventors: Takahiro Kikuchi, Masami Hayashi, Tomonori Mimura, Mitsuo Hattori, Takeshi Sato
-
Patent number: 7476123Abstract: A connector is provided with a housing (10) to be connected with a mating connector housing (70) upon receiving a pushing force from behind, and a slider (40) (connection detecting member) to be mounted into the housing (10) relatively movably between a standby position and a connection position. The slider (40) includes such an operating plate (41) as to entirely cover the rear end surface of the housing (10) at a position behind the rear end surface of the connector housing (10). If the operating plate (41) is pushed forward, a connecting operation of two housings (10, 70) proceeds and the slider (40) is moved from the standby position to the connection position.Type: GrantFiled: November 30, 2007Date of Patent: January 13, 2009Assignee: Sumitomo Wiring Systems, LtdInventors: Yutaka Kobayashi, Keiichi Nakamura, Yutaka Noro, Takahiro Kikuchi, Yoshiyuki Ishikawa
-
Patent number: 7458835Abstract: A movable member (36) is located at a malfunction preventing position and a pair of functional terminals (25) are shorted by a shorting terminal (50) unless two housings (10, 20) are properly connected, whereas the movable member (36) is moved to a connection detecting position and the shorting terminal (50) shorts a pair of detection terminals (14) at the same time as being disengaged from the pair of functional terminals (25) when the two housings (10, 20) are properly connected. Since the shorting terminal (50) is commonly used to short the pair of functional terminals (25) for the malfunction prevention and the like and to short the pair of detection terminals (14) for the detection of a connected state of the two housings (10, 20), the number of parts can be reduced.Type: GrantFiled: December 26, 2007Date of Patent: December 2, 2008Assignee: Sumitomo Wiring Systems, LtdInventors: Yutaka Kobayashi, Keiichi Nakamura, Yutaka Noro, Takahiro Kikuchi, Yoshiyuki Ishikawa
-
Patent number: 7404730Abstract: A housing (10) has a lock arm (20) that pivots about a fulcrum (23) that is rearward of a pivoting portion (24) of the lock arm (20). A detection terminal (50) has a rear support (52) supported on the housing (10) rearward of the pivoting portion (24). An action portion (54) of the detection terminal (50) is engaged with the pivoting portion (24) and displaces with the pivoting portion (24). The lock arm (20) deforms during connection of the housing (10) and a mating housing (90) so that contacts (53) of the detection terminal (50) are not in contact with mating detection terminals (97). However, the lock arm (20) returns resiliently when the housings (10, 90) are connected properly so that the contacts (53) contact the mating detection terminals (97).Type: GrantFiled: September 27, 2007Date of Patent: July 29, 2008Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Yutaka Kobayashi, Keiichi Nakamura, Yutaka Noro, Takahiro Kikuchi, Yoshiyuki Ishikawa
-
Publication number: 20080153343Abstract: A movable member (36) is located at a malfunction preventing position and a pair of functional terminals (25) are shorted by a shorting terminal (50) unless two housings (10, 20) are properly connected, whereas the movable member (36) is moved to a connection detecting position and the shorting terminal (50) shorts a pair of detection terminals (14) at the same time as being disengaged from the pair of functional terminals (25) when the two housings (10, 20) are properly connected. Since the shorting terminal (50) is commonly used to short the pair of functional terminals (25) for the malfunction prevention and the like and to short the pair of detection terminals (14) for the detection of a connected state of the two housings (10, 20), the number of parts can be reduced.Type: ApplicationFiled: December 26, 2007Publication date: June 26, 2008Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Yutaka Kobayashi, Keiichi Nakamura, Yutaka Noro, Takahiro Kikuchi, Yoshiyuki Ishikawa
-
Publication number: 20080132105Abstract: A connector is provided with a housing (10) to be connected with a mating connector housing (70) upon receiving a pushing force from behind, and a slider (40) (connection detecting member) to be mounted into the housing (10) relatively movably between a standby position and a connection position. The slider (40) includes such an operating plate (41) as to entirely cover the rear end surface of the housing (10) at a position behind the rear end surface of the connector housing (10). If the operating plate (41) is pushed forward, a connecting operation of two housings (10, 70) proceeds and the slider (40) is moved from the standby position to the connection position.Type: ApplicationFiled: November 30, 2007Publication date: June 5, 2008Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Yutaka Kobayashi, Keiichi Nakamura, Yutaka Noro, Takahiro Kikuchi, Yoshiyuki Ishikawa
-
Publication number: 20080081504Abstract: A housing (10) has a lock arm (20) that pivots about a fulcrum (23) that is rearward of a pivoting portion (24) of the lock arm (20). A detection terminal (50) has a rear support (52) supported on the housing (10) rearward of the pivoting portion (24). An action portion (54) of the detection terminal (50) is engaged with the pivoting portion (24) and displaces with the pivoting portion (24). The lock arm (20) deforms during connection of the housing (10) and a mating housing (90) so that contacts (53) of the detection terminal (50) are not in contact with mating detection terminals (97). However, the lock arm (20) returns resiliently when the housings (10, 90) are connected properly so that the contacts (53) contact the mating detection terminals (97).Type: ApplicationFiled: September 27, 2007Publication date: April 3, 2008Applicant: Sumitomo Wiring Systems, Ltd.Inventors: Yutaka Kobayashi, Keiichi Nakamura, Yutaka Noro, Takahiro Kikuchi, Yoshiyuki Ishikawa
-
Publication number: 20080004060Abstract: A group communications switching method is disclosed. The method includes the steps of: maintaining a voice call between a first subscriber terminal and a second subscriber terminal when it becomes necessary to perform group communications while the voice call is in progress; starting a group communications call by the first subscriber terminal so as to call at least a group communications member other than the first subscriber terminal and the second subscriber terminal; and disconnecting the voice call between the first subscriber terminal and the second subscriber terminal when the group communications call is established.Type: ApplicationFiled: November 16, 2006Publication date: January 3, 2008Inventors: Takahito Suzuki, Saiki Kawamura, Naoyuki Kakizaki, Yayoi Itoh, Kiyomi Hasesaka, Hiroyasu Taguchi, Hiroki Yokoyama, Yoshikazu Takeda, Kiyoshi Hirouchi, Satoru Abe, Takahiro Kikuchi, Nobuaki Kitazumi
-
Publication number: 20050198140Abstract: To provide a technique for managing members easily and flexibly as circumstances demand. Request information for a service is received from a key person terminal. A service list for the requested service is created based on the request information, and member information is created based on the request information, which are then registered. The member information is transmitted to the key person terminal, and the member application information created based on the member information is received from the group member terminal, which is verified against the member information. In the case where the member application information is judged as being authorized, member information on the group member terminal is created and transmitted to the group member terminal. Upon receiving a request for the service and member information from the key person terminal or the group member terminal, the received member information is subjected to verification.Type: ApplicationFiled: June 24, 2004Publication date: September 8, 2005Inventors: Yayoi Itoh, Takahiro Kikuchi
-
Publication number: 20040102997Abstract: A period required for a time-consuming cross-contamination test is cut down or omitted, and a burden imposed on the customer by the costs of samples, reagents, etc. used in the test are reduced. A data failure caused by cross-contamination can be efficiently prevented. A maintenance service office establishes a connection via a communication line between a computer installed in the maintenance service office for maintenance of automatic analyzers and a customer's automatic analyzer or a personal computer placed in a customer's facility. The maintenance service office receives information regarding cross-contamination from reagent manufacturers and other customers (such as clinical examination rooms or centers) and validates it. The validated information is transmitted from the maintenance service office to the customer's automatic analyzer or personal computer via the communication line.Type: ApplicationFiled: November 20, 2003Publication date: May 27, 2004Inventors: Takahiro Kikuchi, Masami Hayashi, Tomonori Mimura, Mitsuo Hattori, Takeshi Sato
-
Patent number: 5434695Abstract: A rotary polygon mirror device comprises: a rotor including a polygon mirror secured to one end face of a cylinder, a central rod secured inside said cylinder in such a manner that the central rod is extended along the axis of the cylinder, and a thrust bearing magnet secured to the end face of the central rod, said magnet; and a casing coaxially surrounding the cylinder with a gap therebetween. In the device, the gap provides radial bearing means, and the cylinder and the casing are made equal in thermal expansion coefficient.Type: GrantFiled: April 20, 1993Date of Patent: July 18, 1995Assignee: Hitachi Koki Co., Ltd.Inventors: Susumu Saito, Junshin Sakamoto, Makoto Kurosawa, Takahiro Kikuchi, Satoru Wada, Kenichi Kugai
-
Patent number: 5416457Abstract: A lateral orientation type of anisotropic permanent magnet having a face of magnetic application and at least one lateral face adjacent to the face of magnetic application. An axis of easy magnetization of particles of a magnetic powder constituting the permanent magnet is oriented substantially along lines from the lateral face toward the face of magnetic application to increase the peak value of the surface magnetic flux density at the face of magnetic application.Type: GrantFiled: August 10, 1994Date of Patent: May 16, 1995Assignee: Kawasaki Steel CorporationInventors: Satoshi Nakatsuka, Akira Yasuda, Itsuo Tanaka, Koichi Nushiro, Takahiro Kikuchi
-
Patent number: 5321435Abstract: A light scanning device has a light deflector for deflecting in a scanning mode a light beam outputted by a light source; and an optical system for image-forming on a scanning medium the light beam deflected by the light deflecting means, with a convergent or divergent light beam in an optical path between the light source and the scanning medium. A plane-parallel plate is moved into and out of the optical path of the convergent or divergent light beam, so as to change a beam spot diameter on the scanning medium.Type: GrantFiled: November 2, 1993Date of Patent: June 14, 1994Assignees: Hitachi Koki Co., Ltd., Hitachi Ltd.Inventors: Takeshi Mochizuki, Susumu Saito, Shinichi Nishino, Takahiro Kikuchi, Akira Arimoto
-
Patent number: 4929982Abstract: An electrophotographic printer of the transfer type with separate input bins for holding cut sheet print material and fan-fold form print material. Separate paper paths are provided from each bin to a first function. An input paper path is provided for moving either cut sheet or fan-fold forms from the first function to the transfer station. An output paper path is provided for moving either cut sheet or fan-fold forms from the transfer station through the fuser to a second function. Separate paper paths are provided from the second fuction to stack cut sheet material and fan-fold forms in separate output bins.Type: GrantFiled: May 18, 1989Date of Patent: May 29, 1990Assignee: International Business Machines CorporationInventors: Masayuki Ainoya, Takeyuki Ishihara, Tesuo Kanno, Takahiro Kikuchi, Seiichi Mori, Shogo Nobumori, Junji Shirakawa