Patents by Inventor Takahiko Yamanaka
Takahiko Yamanaka 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: 8580374Abstract: A resin molded body comprises a front surface layer disposed on a front surface side, a back surface layer disposed on a back surface side, and an intermediate layer disposed between the front surface layer and the back surface layer, each of the layers has a micro-phase separated structure including lamellar micro domains, each of the micro domains of the layers has a wave-like shape having amplitudes in the opposite direction of the front surface and the back surface, a maximum value of predetermined distances in the micro domains of the front surface layer and a maximum value of predetermined distances in the micro domains of the back surface layer are larger than the wavelength in the visible light range, and predetermined distances in the micro domains of the intermediate layer are equal to or less than the wavelength in the visible light range.Type: GrantFiled: June 27, 2012Date of Patent: November 12, 2013Assignee: Hamamatsu Photonics K.K.Inventors: Shigeo Hara, Takahiko Yamanaka
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Patent number: 8507079Abstract: A structural color body is film-like and comprises a front surface layer disposed on a front surface side and a back surface layer disposed on a back surface side, the front surface layer and the back surface layer contain block copolymers and have micro-phase separated structures including lamellar micro domains, each of the micro domains has a wave-like shape having amplitudes in the thickness direction of the structural color body, a maximum value of distances predetermined in the micro domains of the front surface layer is larger than the wavelength in the visible light range, and distances predetermined in the micro domains of the back surface layer are equal to or less than the wavelength in the visible light range.Type: GrantFiled: June 27, 2012Date of Patent: August 13, 2013Assignee: Hamamatsu Photonics K.K.Inventors: Shigeo Hara, Takahiko Yamanaka
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Publication number: 20130166087Abstract: To make a replacement time difference between two power supply devices as small as possible when the two power supply devices serving as double power supply devices constitute a PLC, a power supply unit includes a temperature detection unit that detects an internal temperature of the own power supply unit, and an output adjustment circuit that adjusts internal power output from the own power supply unit so as to make smaller a difference between a detected temperature by the temperature detection unit of the own power supply unit and a detected temperature by the temperature detection unit included in the other power supply unit attached to a same PLC as the PLC to which the own power supply unit is attached.Type: ApplicationFiled: December 27, 2011Publication date: June 27, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Takahiko Yamanaka
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Patent number: 8440294Abstract: A structural color body is film-like and formed of a resin layer containing a block copolymer, the resin layer has a micro-phase separated structure including lamellar micro domains, each of the micro domains has a wave-like shape having amplitudes in the thickness direction of the structural color body, and in each of the micro domains, a maximum value of distances in the direction between the tops of convexities and the bottoms of concavities is larger than the wavelength in the visible light range.Type: GrantFiled: June 27, 2012Date of Patent: May 14, 2013Assignee: Hamamatsu Photonics K.K.Inventors: Shigeo Hara, Takahiko Yamanaka
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Patent number: 8394490Abstract: A film-like structural color body comprises a front surface layer disposed on a front surface side, a back surface layer disposed on a back surface side, and an intermediate layer disposed between the front surface layer and the back surface layer, the front surface layer, the back surface layer and the intermediate layer contain block copolymers and have micro-phase separated structures including lamellar micro domains, each of the micro domains has a wave-like shape having amplitudes in the thickness direction of the structural color body, a maximum value of predetermined distances in the micro domains of the front surface layer and a maximum value of predetermined distances in the micro domains of the back surface layer are larger than the wavelength in the visible light range, and predetermined distances in the micro domains of the intermediate layer are equal to or less than the wavelength in the visible light range.Type: GrantFiled: June 27, 2012Date of Patent: March 12, 2013Assignee: Hamamatsu Photonics K.K.Inventors: Shigeo Hara, Takahiko Yamanaka
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Publication number: 20130004754Abstract: A film-like structural color body comprises a front surface layer disposed on a front surface side, a back surface layer disposed on a back surface side, and an intermediate layer disposed between the front surface layer and the back surface layer, the front surface layer, the back surface layer and the intermediate layer contain block copolymers and have micro-phase separated structures including lamellar micro domains, each of the micro domains has a wave-like shape having amplitudes in the thickness direction of the structural color body, a maximum value of predetermined distances in the micro domains of the front surface layer and a maximum value of predetermined distances in the micro domains of the back surface layer are larger than the wavelength in the visible light range, and predetermined distances in the micro domains of the intermediate layer are equal to or less than the wavelength in the visible light range.Type: ApplicationFiled: June 27, 2012Publication date: January 3, 2013Applicant: Hamamatsu Photonics K.K.Inventors: Shigeo HARA, Takahiko Yamanaka
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Publication number: 20130004721Abstract: A structural color body is film-like and formed of a resin layer containing a block copolymer, the resin layer has a micro-phase separated structure including lamellar micro domains, each of the micro domains has a wave-like shape having amplitudes in the thickness direction of the structural color body, and in each of the micro domains, a maximum value of distances in the direction between the tops of convexities and the bottoms of concavities is larger than the wavelength in the visible light range.Type: ApplicationFiled: June 27, 2012Publication date: January 3, 2013Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Shigeo HARA, Takahiko YAMANAKA
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Publication number: 20130004722Abstract: A resin molded body comprises a front surface layer disposed on a front surface side, a back surface layer disposed on a back surface side, and an intermediate layer disposed between the front surface layer and the back surface layer, each of the layers has a micro-phase separated structure including lamellar micro domains, each of the micro domains of the layers has a wave-like shape having amplitudes in the opposite direction of the front surface and the back surface, a maximum value of predetermined distances in the micro domains of the front surface layer and a maximum value of predetermined distances in the micro domains of the back surface layer are larger than the wavelength in the visible light range, and predetermined distances in the micro domains of the intermediate layer are equal to or less than the wavelength in the visible light range.Type: ApplicationFiled: June 27, 2012Publication date: January 3, 2013Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Shigeo Hara, Takahiko Yamanaka
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Publication number: 20130004731Abstract: A structural color body is film-like and comprises a front surface layer disposed on a front surface side and a back surface layer disposed on a back surface side, the front surface layer and the back surface layer contain block copolymers and have micro-phase separated structures including lamellar micro domains, each of the micro domains has a wave-like shape having amplitudes in the thickness direction of the structural color body, a maximum value of distances predetermined in the micro domains of the front surface layer is larger than the wavelength in the visible light range, and distances predetermined in the micro domains of the back surface layer are equal to or less than the wavelength in the visible light range.Type: ApplicationFiled: June 27, 2012Publication date: January 3, 2013Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Shigeo HARA, Takahiko YAMANAKA
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Publication number: 20120281433Abstract: To measure input power as accurate as possible, a power supply apparatus includes an AC/DC converter that generates a direct-current internal power supply from an alternating-current commercial power supply, an output-voltage measurement unit that measures an output voltage of the internal power supply, an output-current measurement unit that measures an output current of the internal power supply, a temperature measurement unit that measures an environmental temperature of the power supply apparatus itself, a storage device that stores therein in advance conversion efficiency data in which a correspondence between a conversion efficiency ? of the AC/DC converter and the environmental temperature is recorded, and a computation unit that determines the conversion efficiency ? based on the environmental temperature and the conversion efficiency data and calculates the input power of the commercial power supply by using the determined conversion efficiency ?, the output voltage, and the output current.Type: ApplicationFiled: October 17, 2011Publication date: November 8, 2012Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Takahiko Yamanaka
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Patent number: 8093905Abstract: A smoothing unit includes a first and a second smoothing capacitors, a first and a second discharge resistors connected in parallel to both ends of the first and the second smoothing capacitors, respectively. During a normal operation, both the first and the second smoothing capacitors are connected electrically to a live line. On the other hand, during a degradation diagnosis, the first and the second smoothing capacitors are alternately connected electrically to the live line at a predetermined timing, and a smoothing capacitor not electrically connected to the live line is subjected to the degradation diagnosis.Type: GrantFiled: July 31, 2007Date of Patent: January 10, 2012Assignee: Mitsubishi Electric CorporationInventor: Takahiko Yamanaka
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Publication number: 20100007361Abstract: A smoothing unit includes a first and a second smoothing capacitors, a first and a second discharge resistors connected in parallel to both ends of the first and the second smoothing capacitors, respectively. During a normal operation, both the first and the second smoothing capacitors are connected electrically to a live line. On the other hand, during a degradation diagnosis, the first and the second smoothing capacitors are alternately connected electrically to the live line at a predetermined timing, and a smoothing capacitor not electrically connected to the live line is subjected to the degradation diagnosis.Type: ApplicationFiled: July 31, 2007Publication date: January 14, 2010Applicant: Mitsubishi Electric CorporationInventor: Takahiko Yamanaka