Patents by Inventor Koji Takasaki
Koji Takasaki 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: 11918986Abstract: There is provided an exhaust gas purification device that shows a high HC removal performance under a condition in which a rich air-fuel mixture is introduced. The exhaust gas purification device includes a substrate, a first catalyst layer, and a second catalyst layer. The substrate includes an upstream end and a downstream end. The first catalyst layer is disposed on a surface of the partition wall in an upstream region including the upstream end of the substrate. The second catalyst layer is disposed inside the partition wall in a downstream region including the downstream end of the substrate. The first catalyst layer contains a first metal catalyst and alumina-zirconia composite oxide. The second catalyst layer contains a second metal catalyst.Type: GrantFiled: May 24, 2022Date of Patent: March 5, 2024Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji Sugiura, Takeshi Hirabayashi, Akemi Satou, Keisuke Murawaki, Takaya Ota, Masatoshi Ikebe, Kohei Takasaki, Takeshi Morishima
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Patent number: 10583896Abstract: Provided is a fuel composition prepared by adding gas-to-liquid oil and water to light cycle oil to conduct emulsification. The fuel composition is used as a fuel for a diesel engine (12) in a ship (10). The ship (10) includes a fresh water tank (15), an LCO tank (13), and a GTL tank (14) configured to store water, light cycle oil, and gas-to-liquid oil, respectively, and a mixer (16) configured to mix the water, the light cycle oil, and the gas-to-liquid oil fed from the respective tanks to produce the fuel composition.Type: GrantFiled: July 13, 2016Date of Patent: March 10, 2020Assignee: Oshima Shipbuilding Co., Ltd.Inventors: Tatsuo Takaishi, Koji Takasaki
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Publication number: 20180251194Abstract: Provided is a fuel composition prepared by adding gas-to-liquid oil and water to light cycle oil to conduct emulsification. The fuel composition is used as a fuel for a diesel engine (12) in a ship (10). The ship (10) includes a fresh water tank (15), an LCO tank (13), and a GTL tank (14) configured to store water, light cycle oil, and gas-to-liquid oil, respectively, and a mixer (16) configured to mix the water, the light cycle oil, and the gas-to-liquid oil fed from the respective tanks to produce the fuel composition.Type: ApplicationFiled: July 13, 2016Publication date: September 6, 2018Inventors: Tatsuo Takaishi, Koji Takasaki
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Publication number: 20140185298Abstract: A strobe device having small variations in the amount of light includes the following components: a flash discharge tube having an anode on one side and a cathode on the other side, the cathode having a metal sintered body at an end thereof; a conductive reflector composing an external trigger electrode, and storing a part of the flash discharge tube; and a trigger coil having a primary winding and a secondary winding around a hollow core. A portion of the cathode of the flash discharge tube not including the metal sintered body is inserted into the core of the trigger coil. The reflector, which is connected to the secondary winding of the trigger coil, has a bottom in contact with the outer peripheral surface of the flash discharge tube in such a manner as to cover at least the region extending from the anode to the cathode and the metal sintered body.Type: ApplicationFiled: August 6, 2012Publication date: July 3, 2014Applicant: PANASONIC CORPORATIONInventors: Takao Kondo, Koji Takasaki, Toshinori Maki, Toshiaki Murai
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Patent number: 8466435Abstract: A fine particle measuring device includes an optical filter that is divided into a plurality of areas and is disposed on an optical path on which light emitted from a fine particle, which is irradiated with light, is guided to an optical detector. In the fine particle measuring device, the optical filter includes a first area having wavelength selectivity by which the first area blocks reflected light from the fine particle and an unnecessary scattered light component and transmits fluorescence, and a second area that is disposed around at least the first area and has no wavelength selectivity so as to transmit a necessary scattered light component.Type: GrantFiled: July 12, 2011Date of Patent: June 18, 2013Assignee: Sony CorporationInventors: Mitsuru Toishi, Katsuhiro Seo, Koji Takasaki, Shinji Yamada, Atsushi Fukumoto
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Patent number: 8432591Abstract: A light irradiation device includes: a focus servo control unit including a light source, a spatial light modulating unit, and a light irradiating unit, for focus servo control so that the ideal focal position of light via an objective lens is such that distance between an ideal focal position and a hologram recording medium surface is smaller than distance from the surface to the lower layer side face of the recording layer, and the focal position of light via the objective lens is constant at the ideal focal position; an objective-lens/relay-lens distance adjusting unit to adjust distance between the objective lens and a relay lens close to the objective lens; a light reception unit to receive marker light; and a constant distance control unit to control the objective-lens/relay-lens distance adjusting unit based on error between the ideal position of the marker light, and the actual position of the marker light.Type: GrantFiled: February 12, 2010Date of Patent: April 30, 2013Assignee: Sony CorporationInventors: Akio Yamakawa, Yoshiki Okamoto, Kenji Tanaka, Kazutatsu Tokuyama, Koji Takasaki
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Patent number: 8384045Abstract: A minute particle analyzing device includes: a light source; a first condenser lens for condensing light from the light source to a first end of a multimode optical fiber; a second condenser lens for condensing the light emerging from a second end of the multimode optical fiber to a minute particle; and a detector for detecting light generated from the minute particle by the application of the light from the light source.Type: GrantFiled: July 1, 2010Date of Patent: February 26, 2013Assignee: Sony CorporationInventors: Koji Takasaki, Katsuhiro Seo, Mitsuru Toishi, Shinji Yamada, Atsushi Fukumoto, Gary Durack
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Patent number: 8121010Abstract: A hologram device includes: a light source for applying light to a hologram recording medium having a recording layer in which information recording is performed by interference fringes between signal light and reference light; a spatial modulation unit that generates the signal light and/or the reference light and generates a marker light in a predetermined position within an incident surface of the light from the light source by performing spatial light modulation on the light from the light source; a light applying unit that applies the light subjected to spatial light modulation by the spatial light modulation unit to the hologram recording medium via an objective lens; a light receiving unit that receives the light applied via the objective lens through the hologram recording medium; and a tilt detection unit that obtains a tilt error signal representing an error from an ideal angle of a tilt angle as an incident angle of the applied light via the objective lens to an information recording surface of theType: GrantFiled: March 25, 2010Date of Patent: February 21, 2012Assignee: Sony CorporationInventors: Akio Yamakawa, Yoshiki Okamoto, Kenji Tanaka, Kazutatsu Tokuyama, Koji Takasaki
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Publication number: 20120018650Abstract: A fine particle measuring device includes an optical filter that is divided into a plurality of areas and is disposed on an optical path on which light emitted from a fine particle, which is irradiated with light, is guided to an optical detector. In the fine particle measuring device, the optical filter includes a first area having wavelength selectivity by which the first area blocks reflected light from the fine particle and an unnecessary scattered light component and transmits fluorescence, and a second area that is disposed around at least the first area and has no wavelength selectivity so as to transmit a necessary scattered light component.Type: ApplicationFiled: July 12, 2011Publication date: January 26, 2012Applicant: SONY CORPORATIONInventors: Mitsuru Toishi, Katsuhiro Seo, Koji Takasaki, Shinji Yamada, Atsushi Fukumoto
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Publication number: 20120001090Abstract: A minute particle analyzing device includes: a light source; a first condenser lens for condensing light from the light source to a first end of a multimode optical fiber; a second condenser lens for condensing the light emerging from a second end of the multimode optical fiber to a minute particle; and a detector for detecting light generated from the minute particle by the application of the light from the light source.Type: ApplicationFiled: July 1, 2010Publication date: January 5, 2012Applicants: ICYT MISSION TECHNOLOGY, INC., SONY CORPORATIONInventors: Koji Takasaki, Katsuhiro Seo, Mitsuru Toishi, Shinji Yamada, Atsushi Fukumoto, Gary Durack
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Publication number: 20100265808Abstract: A hologram device includes: a light source for applying light to a hologram recording medium having a recording layer in which information recording is performed by interference fringes between signal light and reference light; a spatial modulation unit that generates the signal light and/or the reference light and generates a marker light in a predetermined position within an incident surface of the light from the light source by performing spatial light modulation on the light from the light source; a light applying unit that applies the light subjected to spatial light modulation by the spatial light modulation unit to the hologram recording medium via an objective lens; a light receiving unit that receives the light applied via the objective lens through the hologram recording medium; and a tilt detection unit that obtains a tilt error signal representing an error from an ideal angle of a tilt angle as an incident angle of the applied light via the objective lens to an information recording surface of theType: ApplicationFiled: March 25, 2010Publication date: October 21, 2010Applicant: SONY CORPORATIONInventors: Akio YAMAKAWA, Yoshiki Okamoto, Kenji Tanaka, Kazutatsu Tokuyama, Koji Takasaki
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Publication number: 20100245955Abstract: A light irradiation device includes: a focus servo control unit including a light source, a spatial light modulating unit, and a light irradiating unit, for focus servo control so that the ideal focal position of light via an objective lens is such that distance between an ideal focal position and a hologram recording medium surface is smaller than distance from the surface to the lower layer side face of the recording layer, and the focal position of light via the objective lens is constant at the ideal focal position; an objective-lens/relay-lens distance adjusting unit to adjust distance between the objective lens and a relay lens close to the objective lens; a light reception unit to receive marker light; and a constant distance control unit to control the objective-lens/relay-lens distance adjusting unit based on error between the ideal position of the marker light, and the actual position of the marker light.Type: ApplicationFiled: February 12, 2010Publication date: September 30, 2010Applicant: SONY CORPORATIONInventors: Akio YAMAKAWA, Yoshiki OKAMOTO, Kenji TANAKA, Kazutatsu TOKUYAMA, Koji TAKASAKI
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Publication number: 20100060960Abstract: A reproduction device includes a light-emitting unit that emits reference light and coherent light, which is generated so as to have uniform light intensity and uniform phase, onto a hologram recording medium on which data is recorded by an interference pattern of signal light and the reference light, and a light-attenuating unit that attenuates the light intensity of the coherent light.Type: ApplicationFiled: August 10, 2009Publication date: March 11, 2010Applicant: Sony CorporationInventors: Kenji Tanaka, Koji Takasaki, Kazutatsu Tokuyama, Atsushi Fukumoto, Hidenori Mori, Yoshiki Okamoto
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Patent number: 7595583Abstract: A cold-cathode fluorescent lamp including a glass bulb and a pair of electrodes which are cylindrical and respectively inserted in two ends of the glass bulb. Two end portions of the glass bulb are substantially circular in transverse cross section, the two end portions respectively corresponding to the inserted pair of electrodes in length. At least part of a middle portion of the glass bulb is flat in transverse cross section, the middle portion corresponding to a space in the glass bulb between the pair of electrodes.Type: GrantFiled: February 16, 2005Date of Patent: September 29, 2009Assignee: Panasonic CorporationInventors: Hirofumi Yamashita, Toshihiro Terada, Yusuke Mori, Haruo Yamazaki, Takashi Maniwa, Koji Takasaki
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Patent number: 7283286Abstract: A hologram recording/reproducing device includes a laser light source emitting laser light; a spatial light modulator generating signal light and reference light from the laser light emitted from the laser light source, the signal light and the reference light traveling in a common light path; a first relay lens system including a first shielding plate at a focal position thereof and transmitting the signal light and the reference light generated by the spatial light modulator, the first shielding plate having a pinhole whose size is 1 to 2 times a Nyquist size; a phase modulating element disposed at a conjugate plane of the signal light and the reference light transmitted through the first relay lens system; an objective lens converging the signal light and the reference light transmitted through the phase modulating element on a hologram recording medium; and a light receiving system disposed between the phase modulating element and objective lens and receiving light returning from the hologram recording meType: GrantFiled: December 21, 2005Date of Patent: October 16, 2007Assignee: Sony CorporationInventors: Atsushi Fukumoto, Mikio Sugiki, Mitsuru Toishi, Naoto Kojima, Hitoshi Okada, Koji Takasaki
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Publication number: 20060171006Abstract: A hologram recording/reproducing device includes a laser light source emitting laser light; a spatial light modulator generating signal light and reference light from the laser light emitted from the laser light source, the signal light and the reference light traveling in a common light path; a first relay lens system including a first shielding plate at a focal position thereof and transmitting the signal light and the reference light generated by the spatial light modulator, the first shielding plate having a pinhole whose size is 1 to 2 times a Nyquist size; a phase modulating element disposed at a conjugate plane of the signal light and the reference light transmitted through the first relay lens system; an objective lens converging the signal light and the reference light transmitted through the phase modulating element on a hologram recording medium; and a light receiving system disposed between the phase modulating element and objective lens and receiving light returning from the hologram recording meType: ApplicationFiled: December 21, 2005Publication date: August 3, 2006Applicant: Sony CorporationInventors: Atsushi Fukumoto, Mikio Sugiki, Mitsuru Toishi, Naoto Kojima, Hitoshi Okada, Koji Takasaki
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Publication number: 20050184640Abstract: A cold-cathode fluorescent lamp including a glass bulb and a pair of electrodes which are cylindrical and respectively inserted in two ends of the glass bulb. Two end portions of the glass bulb are substantially circular in transverse cross section, the two end portions respectively corresponding to the inserted pair of electrodes in length. At least part of a middle portion of the glass bulb is flat in transverse cross section, the middle portion corresponding to a space in the glass bulb between the pair of electrodes.Type: ApplicationFiled: February 16, 2005Publication date: August 25, 2005Inventors: Hirofumi Yamashita, Toshihiro Terada, Yusuke Mori, Haruo Yamazaki, Takashi Maniwa, Koji Takasaki
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Patent number: 6654323Abstract: A method of tracking servo for an optical pickup device comprises the steps of generating each individual push pull signal (an SPP1 signal, an SPP2 signal and an MPP signal) with a photo detector composed of a main photo detector having four photo-detecting sections crosswise and two side photo detectors having respectively two photo-detecting sections left and right, and generating a tracking error signal (a DPP signal) on the basis of operational output from the push pull signals resulting from respectively canceling the amounts of DC offset produced in each of the push pull.Type: GrantFiled: April 19, 2001Date of Patent: November 25, 2003Assignee: Sony CorporationInventors: Koji Takasaki, Hitoshi Okada, Tsutomu Maruyama
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Publication number: 20020006092Abstract: A method of tracking servo for an optical pickup device comprises the steps of generating each individual push pull signal (an SPP1 signal, an SPP2 signal and an MPP signal) with a photo detector composed of a main photo detector having four photo-detecting sections crosswise and two side photo detectors having respectively two photo-detecting sections left and right, and generating a tracking error signal (a DPP signal) on the basis of operational output from the push pull signals resulting from respectively canceling the amounts of DC offset produced in each of the push pull.Type: ApplicationFiled: April 19, 2001Publication date: January 17, 2002Inventors: Koji Takasaki, Hitoshi Okada, Tsutomu Maruyama