Patents by Inventor Masayuki Koyama
Masayuki Koyama 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: 9011760Abstract: An object of the present invention is to provide a hardening method and a hardening device capable of successfully hardening a shaft and an inner wall of a hole of a work in which the hole is formed close to the shaft on a flat plate. A hardening device for hardening a shaft and an inner wall of a hole, the shaft extending vertically from a flat plate and the hole being formed adjacent to the shaft, includes a first heating coil that is a conductive body facing the shaft and a second heating coil that is a helical conductive body having at least a portion inserted into the hole, so that the first heating coil and the second heating coil heat the shaft and the inner wall of the hole respectively and simultaneously.Type: GrantFiled: September 23, 2013Date of Patent: April 21, 2015Assignee: Fuji Electronics Industry Co., Ltd.Inventors: Junji Minoue, Hiroko Watanabe, Masayuki Koyama, Hideo Miyashita
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Publication number: 20140021664Abstract: An object of the present invention is to provide a hardening method and a hardening device capable of successfully hardening a shaft and an inner wall of a hole of a work in which the hole is formed close to the shaft on a flat plate. A hardening device for hardening a shaft and an inner wall of a hole, the shaft extending vertically from a flat plate and the hole being formed adjacent to the shaft, includes a first heating coil that is a conductive body facing the shaft and a second heating coil that is a helical conductive body having at least a portion inserted into the hole, so that the first heating coil and the second heating coil heat the shaft and the inner wall of the hole respectively and simultaneously.Type: ApplicationFiled: September 23, 2013Publication date: January 23, 2014Applicant: FUJI ELECTRONICS INDUSTRY CO.Inventors: Junji Minoue, Hiroko Watanabe, Masayuki Koyama, Hideo Miyashita
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Patent number: 8569664Abstract: An object of the present invention is to provide a hardening method and a hardening device capable of successfully hardening a shaft and an inner wall of a hole of a work in which the hole is formed close to the shaft on a flat plate. A hardening device for hardening a shaft and an inner wall of a hole, the shaft extending vertically from a flat plate and the hole being formed adjacent to the shaft, includes a first heating coil that is a conductive body facing the shaft and a second heating coil that is a helical conductive body having at least a portion inserted into the hole, so that the first heating coil and the second heating coil heat the shaft and the inner wall of the hole respectively and simultaneously.Type: GrantFiled: December 10, 2009Date of Patent: October 29, 2013Assignee: Fuji Electronics Industry Co.Inventors: Junji Minoue, Hiroko Watanabe, Masayuki Koyama, Hideo Miyashita
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Patent number: 8073039Abstract: In a reception apparatus, a matched filter that has conventionally been arranged in a searcher unit is mounted on an acquisition unit together with a large scale memory. The large scale memory once stores reception chip signals, and thereafter outputs them to the matched filter and to the delay profile calculation unit. A setting register receives an acquisition signal and outputs it to the matched filter. The matched filter performs acquisition of the reception chip signals outputted from the large scale memory, and outputs a despread timing signal to a despread circuit, a code generation circuit and the delay profile calculation unit.Type: GrantFiled: December 14, 2010Date of Patent: December 6, 2011Assignee: Renesas Electronics CorporationInventor: Masayuki Koyama
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Patent number: 7984223Abstract: An information device packaged in one package includes a main function unit and an interface function unit. The main function unit includes a main processing circuit for executing signal processing related to a main function in the information device and a first microcomputer for controlling the main processing circuit by executing a first firmware program. The interface function unit includes an interface function unit including a first interface circuit for receiving data from an exterior device located outside of the information device to provide to the main function unit, a second interface circuit for performing an authentication operation with the exterior device, a second microcomputer for controlling the first interface circuit, and a memory for storing a second firmware program for controlling the first interface circuit.Type: GrantFiled: March 12, 2010Date of Patent: July 19, 2011Assignee: Renesas Electronics CorporationInventors: Hideo Nagano, Kikuo Muramatsu, Masayuki Koyama, Tomoko Ando, Motoki Higashida, Takahiko Arakawa, Makoto Hatakenaka
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Publication number: 20110085583Abstract: In a reception apparatus, a matched filter that has conventionally been arranged in a searcher unit is mounted on an acquisition unit together with a large scale memory. The large scale memory once stores reception chip signals, and thereafter outputs them to the matched filter and to the delay profile calculation unit. A setting register receives an acquisition signal and outputs it to the matched filter. The matched filter performs acquisition of the reception chip signals outputted from the large scale memory, and outputs a despread timing signal to a despread circuit, a code generation circuit and the delay profile calculation unit.Type: ApplicationFiled: December 14, 2010Publication date: April 14, 2011Applicant: Renesas Technology Corp.Inventor: Masayuki KOYAMA
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Patent number: 7873100Abstract: In a reception apparatus, a matched filter that has conventionally been arranged in a searcher unit is mounted on an acquisition unit together with a large scale memory. The large scale memory once stores reception chip signals, and thereafter outputs them to the matched filter and to the delay profile calculation unit. A setting register receives an acquisition signal and outputs it to the matched filter. The matched filter performs acquisition of the reception chip signals outputted from the large scale memory, and outputs a despread timing signal to a despread circuit, a code generation circuit and the delay profile calculation unit.Type: GrantFiled: December 14, 2004Date of Patent: January 18, 2011Assignee: Renesas Electronics CorporationInventor: Masayuki Koyama
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Publication number: 20100191883Abstract: An information device packaged in one package includes a main function unit and an interface function unit. The main function unit includes a main processing circuit for executing signal processing related to a main function in the information device and a first microcomputer for controlling the main processing circuit by executing a first firmware program. The interface function unit includes an interface function unit including a first interface circuit for receiving data from an exterior device located outside of the information device to provide to the main function unit, a second interface circuit for performing an authentication operation with the exterior device, a second microcomputer for controlling the first interface circuit, and a memory for storing a second firmware program for controlling the first interface circuit.Type: ApplicationFiled: March 12, 2010Publication date: July 29, 2010Applicant: Renesas Technology Corp.Inventors: Hideo Nagano, Kikuo Muramatsu, Masayuki Koyama, Tomoko Ando, Motoki Higashida, Takahiko Arakawa, Makoto Hatakenaka
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Publication number: 20100147831Abstract: An object of the present invention is to provide a hardening method and a hardening device capable of successfully hardening a shaft and an inner wall of a hole of a work in which the hole is formed close to the shaft on a flat plate. A hardening device for hardening a shaft and an inner wall of a hole, the shaft extending vertically from a flat plate and the hole being formed adjacent to the shaft, includes a first heating coil that is a conductive body facing the shaft and a second heating coil that is a helical conductive body having at least a portion inserted into the hole, so that the first heating coil and the second heating coil heat the shaft and the inner wall of the hole respectively and simultaneously.Type: ApplicationFiled: December 10, 2009Publication date: June 17, 2010Inventors: Junji Minoue, Hiroko Watanabe, Masayuki Koyama, Hideo Miyashita
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Patent number: 7716410Abstract: An information device includes a main processing circuit for executing signal processing related to a main function in the information device, a main microcomputer for controlling the main processing circuit, a receiver circuit for interfacing with the outside of the information device, and an interface microcomputer for controlling the receiver circuit, the interface microcomputer being provided separately from the main microcomputer.Type: GrantFiled: October 23, 2006Date of Patent: May 11, 2010Assignee: Renesas Technology Corp.Inventors: Hideo Nagano, Kikuo Muramatsu, Masayuki Koyama, Tomoko Ando, Motoki Higashida, Takahiko Arakawa, Makoto Hatakenaka
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Publication number: 20070091122Abstract: An information device includes a main processing circuit for executing signal processing related to a main function in the information device, a main microcomputer for controlling the main processing circuit, a receiver circuit for interfacing with the outside of the information device, and an interface microcomputer for controlling the receiver circuit, the interface microcomputer being provided separately from the main microcomputer.Type: ApplicationFiled: October 23, 2006Publication date: April 26, 2007Applicant: Renesas Technology CorporationInventors: Hideo Nagano, Kikuo Muramatsu, Masayuki Koyama, Tomoko Ando, Motoki Higashida, Takahiko Arakawa, Makoto Hatakenaka
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Patent number: 7137130Abstract: A laser light source (61) and a heat-radiating plate (71) are provided on a pickup base (51). The laser light source (61) irradiates a laser beam to an optical disk (41). The heat-radiating plate (71) has at least one part exposed outside the pickup base (51), having a predetermined distance between the heat-radiating plate (71) and the pickup base (51), and radiates heat generated by the laser light source (61). The plate (71) can radiate heat also from a surface opposing the pickup base (51) and can therefore have a high heat-radiating efficiency.Type: GrantFiled: October 8, 2003Date of Patent: November 14, 2006Assignee: Pioneer CorporationInventors: Masaya Murata, Yuichi Mizuuchi, Masayuki Koyama, Takehiko Hayashi, Tsuyoshi Iwano
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Patent number: 7124420Abstract: A communication hole (55) is provided in a pickup base (51). A laser light source (61) is provided at an end of the communication hole (55). A grating (71) is provided at another end of the communication hole (55). The communication hole (55) is provided with a heat radiation path (81) which connects the inside of the communication hole (55) with the outside of the pickup base (51). Heat generated from the laser light source (61) is radiated from the heat radiation path (81).Type: GrantFiled: October 8, 2003Date of Patent: October 17, 2006Assignee: Pioneer CorporationInventors: Masaya Murata, Yuichi Mizuuchi, Masayuki Koyama, Takehiko Hayashi, Tsuyoshi Iwano
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Patent number: 6944218Abstract: An adaptive filter includes: a plurality of delay circuits which receive a first signal, a second signal obtained by delaying the first signal, and a tap coefficient, and generates a first delay signal obtained by delaying the first signal, and a second delay signal obtained by delaying the second signal, and based upon the first delay signal and the tap coefficient, calculates a set point signal for each of the delay circuits; an addition circuit which adds the set point signals for a set point signal as a whole; and a coefficient calculation circuit which is placed in each of the delay circuits and which sequentially selects the second delay signals, and based upon the selected second delay signal and the set point signal as a whole, sequentially calculates the tap coefficients for the respective delay circuits.Type: GrantFiled: May 17, 2001Date of Patent: September 13, 2005Assignee: Renesas Technology Corp.Inventor: Masayuki Koyama
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Patent number: 6912234Abstract: An optical pickup apparatus and a laser diode chip which can simplify and miniaturize a construction of the apparatus is provided for using a plurality of laser beams of different wavelengths. The laser diode chip is a chip for the optical pickup apparatus in which a plurality of light emitting portions for emitting the laser beams of the different wavelengths in the same emitting direction are formed on a substrate. Light emitting points of the plurality of light emitting portions are located at positions which are different in the emitting direction.Type: GrantFiled: January 29, 2001Date of Patent: June 28, 2005Assignee: Pioneer CorporationInventors: Shinichi Takahashi, Hirokatsu Nagatake, Aki Yoshioka, Mitsutoshi Sugano, Ko Ishii, Makoto Kawamura, Akira Miura, Masayuki Koyama
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Publication number: 20050135462Abstract: In a reception apparatus, a matched filter that has conventionally been arranged in a searcher unit is mounted on an acquisition unit together with a large scale memory. The large scale memory once stores reception chip signals, and thereafter outputs them to the matched filter and to the delay profile calculation unit. A setting register receives an acquisition signal and outputs it to the matched filter. The matched filter performs acquisition of the reception chip signals outputted from the large scale memory, and outputs a despread timing signal to a despread circuit, a code generation circuit and the delay profile calculation unit.Type: ApplicationFiled: December 14, 2004Publication date: June 23, 2005Applicant: Renesas Technology Corp.Inventor: Masayuki Koyama
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Publication number: 20050120147Abstract: A DMAC is provided with a plurality of DMA transfer portions controlling DMA transfer in accordance with values set in a group of registers for current transfer. When the DMAC acquires bus ownership from a bus master, use of the bus is permitted among the plurality of DMA transfer portions in a prescribed order in response to transfer requests from the plurality of DMA transfer portions. Therefore, occupation of the bus ownership by a specific DMA channel can be prevented.Type: ApplicationFiled: April 12, 2004Publication date: June 2, 2005Inventor: Masayuki Koyama
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Patent number: 6845078Abstract: An optical pickup apparatus comprises a first light source for emitting a first laser beam having a first wavelength; a second light source for emitting a second laser beam having a second wavelength; and an objective lens for condensing the first laser beam and the second laser beam. The first light source and the second light source are disposed in positions in such a way that a total amount of coma aberration, which is generated on the first laser beam in accordance with a distance between the first light source and an optical axis of a whole optical system and coma aberration, which is generated on the first laser beam in accordance with a tilting amount of the objective lens becomes null, and a total amount of coma aberration, which is generated on the second laser beam in accordance with a distance between the second light source and said optical axis and coma aberration, which is generated on the second laser beam in accordance with the tilting amount of the objective lens becomes null.Type: GrantFiled: October 7, 2003Date of Patent: January 18, 2005Assignee: Pioneer CorporationInventors: Hitoshi Furuhata, Masayuki Koyama, Tomotaka Nishimura
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Publication number: 20040117809Abstract: A communication hole (55) is provided in a pickup base (51). A laser light source (61) is provided at an end of the communication hole (55). A grating (71) is provided at another end of the communication hole (55). The communication hole (55) is provided with a heat radiation path (81) which connects the inside of the communication hole (55) with the outside of the pickup base (51). Heat generated from the laser light source (61) is radiated from the heat radiation path (81).Type: ApplicationFiled: October 8, 2003Publication date: June 17, 2004Inventors: Masaya Murata, Yuichi Mizuuchi, Masayuki Koyama, Takehiko Hayashi, Tsuyoshi Iwano
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Publication number: 20040117810Abstract: A laser light source (61) and a heat-radiating plate (71) are provided on a pickup base (51). The laser light source (61) irradiates a laser beam to an optical disk (41). The heat-radiating plate (71) has at least one part exposed outside the pickup base (51), having a predetermined distance between the heat-radiating plate (71) and the pickup base (51), and radiates heat generated by the laser light source (61). The plate (71) can radiate heat also from a surface opposing the pickup base (51) and can therefore have a high heat-radiating efficiency.Type: ApplicationFiled: October 8, 2003Publication date: June 17, 2004Inventors: Masaya Murata, Yuichi Mizuuchi, Masayuki Koyama, Takehiko Hayashi, Tsuyoshi Iwano