Patents by Inventor Katsuhiko Miyamoto
Katsuhiko Miyamoto 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: 10138269Abstract: A method for producing a crystalline amino acid involves a step of irradiating a saturated solution of an amino acid with an optical vortex and depositing a crystalline amino acid in the saturated solution of amino acid. It is desirable that the amino acid is at least one of alanine, arginine, asparagine, asparagine acid, cysteine, glutamine, glutamine acid, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, valine, and derivatives thereof.Type: GrantFiled: July 27, 2015Date of Patent: November 27, 2018Assignee: NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITYInventors: Takashige Omatsu, Katsuhiko Miyamoto
-
Patent number: 10099921Abstract: Provided is the possibility for new application of optical vortices. In order to do so, the method for producing an organic helical structure according to the present invention entails irradiating the surface of macromolecules that exhibit a photoisomerization reaction with an optical vortex, thereby forming a nanoscale helical structure on the surface of the macromolecules. In this case, it is preferable that the macromolecules exhibiting a photoisomerization reaction are azo polymer and/or spiropyran-polymer macromolecules. Moreover, it is preferable that the step for forming a nanoscale helical structure is repeated, and that a plurality of nanoscale helical structures are formed in two dimensions on the surface of the macromolecules. It is also preferable that the optical vortex is circularly polarized light, and that the total angular momentum (J) of the optical vortex is not 0.Type: GrantFiled: May 12, 2014Date of Patent: October 16, 2018Assignee: NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITYInventors: Takashige Omatsu, Katsuhiko Miyamoto
-
Publication number: 20170253630Abstract: The object of the present invention is to provide a new application of an optical vortex. For the object, a method for producing crystalline amino acid comprises a step of irradiating a saturated solution of amino acid with optical vortex, and depositing crystalline amino acid in the saturated solution of amino acid. In the method, it is desirable that the amino acid contains at least one of alanine, arginine, asparagine, asparagine acid, cysteine, glutamine, glutamine acid, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, valine, and derivative of them.Type: ApplicationFiled: July 27, 2015Publication date: September 7, 2017Inventors: Takashige OMATSU, Katsuhiko MIYAMOTO
-
Publication number: 20160107888Abstract: Provided is the possibility for new application of optical vortices. In order to do so, the method for producing an organic helical structure according to the present invention entails irradiating the surface of macromolecules that exhibit a photoisomerization reaction with an optical vortex, thereby forming a nanoscale helical structure on the surface of the macromolecules. In this case, it is preferable that the macromolecules exhibiting a photoisomerization reaction are azo polymer and/or spiropyran-polymer macromolecules. Moreover, it is preferable that the step for forming a nanoscale helical structure is repeated, and that a plurality of nanoscale helical structures are formed in two dimensions on the surface of the macromolecules. It is also preferable that the optical vortex is circularly polarized light, and that the total angular momentum (J) of the optical vortex is not 0.Type: ApplicationFiled: May 12, 2014Publication date: April 21, 2016Inventors: Takashige OMATSU, Katsuhiko MIYAMOTO
-
Patent number: 9172205Abstract: Provided is an optical vortex laser oscillation device which is capable of an increased out and can generate an optical vortex even in a wide frequency range and if the optical vortex has a quantum number which is not an integer. A laser device according to one embodiment of the present application comprises: a laser light source for generating laser light; an optical vortex generation unit for generating an energized optical vortex on the basis of the laser light generated by the laser light source; and an optical resonance unit for resonating the energized optical vortex generated by the optical vortex generation unit and dividing the energized optical vortex into signal light and idler light.Type: GrantFiled: June 7, 2012Date of Patent: October 27, 2015Assignee: NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITYInventors: Takashige Omatsu, Katsuhiko Miyamoto
-
Publication number: 20140226685Abstract: Provided is an optical vortex laser oscillation device which is capable of an increased out and can generate an optical vortex even in a wide frequency range and if the optical vortex has a quantum number which is not an integer. A laser device according to one embodiment of the present application comprises: a laser light source for generating laser light; an optical vortex generation unit for generating an energized optical vortex on the basis of the laser light generated by the laser light source; and an optical resonance unit for resonating the energized optical vortex generated by the optical vortex generation unit and dividing the energized optical vortex into signal light and idler light.Type: ApplicationFiled: June 7, 2012Publication date: August 14, 2014Inventors: Takashige Omatsu, Katsuhiko Miyamoto
-
Patent number: 8170201Abstract: Terminals are connected via cables in a star-shaped fashion with respect to a HUB in a LAN. Each of the cables includes therein signal lines and power feed lines. The HUB includes therein a power feed section. The power feed section and the power feed lines of each cable are connected to measure a value of current which flows in the power feed lines. If it is judged based on the measured current value that the terminal connected to the corresponding cable is a telephone terminal, the power feeding to the corresponding power feed lines is continued. On the other hand, if the terminal is judged to be a terminal other than the telephone terminal, the power feeding is stopped.Type: GrantFiled: June 6, 2007Date of Patent: May 1, 2012Assignee: Oki Electric Industry Co., Ltd.Inventor: Katsuhiko Miyamoto
-
Patent number: 7877190Abstract: A fuel control device for an internal combustion engine determines that the internal combustion engine is in a transient state, by a criterion D, and makes fuel correction, where the transient-state criterion D is set to be a more relaxed criterion (=|?THaf|) when forcible modulation control is being performed, compared with a normal criterion (=|?THn|) used when the forcible modulation control is not being performed.Type: GrantFiled: January 29, 2009Date of Patent: January 25, 2011Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Katsuhiko Miyamoto, Tetsuya Watanabe, Masashi Takahashi, Kinichi Iwachido
-
Patent number: 7712303Abstract: A degradation estimating apparatus for an unburned fuel component adsorption catalyst, which is connected with an internal combustion engine and has an unburned fuel component adsorbent and an oxygen storage component is provided. The apparatus includes a degradation estimating unit for making estimation for a degradation of the unburned fuel component adsorption catalyst on the basis of a first term and a second term. The first term is from the cancellation of the fuel supply to detecting a variation of an upstream side air-fuel ratio occurring due to the increase of the reductant quantity in the exhaust gas. The second term is from the cancellation of the fuel supply to detecting of a variation of the downstream side air-fuel ratio due to an increase of the reductant quantity.Type: GrantFiled: April 20, 2006Date of Patent: May 11, 2010Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Hiroshi Tanada, Yasuyuki Hatsuda, Takehisa Fujita, Takaharu Hashimoto, Keisuke Tashiro, Mizuki Anai, Mitsutaka Kojima, Masayuki Yamashita, Katsuhiko Miyamoto
-
Patent number: 7614216Abstract: In an exhaust system, there are provided an HC absorbent which absorbs HC contained in exhaust when in a specified low-temperature range and desorbs the absorbed HC when it exceeds said low-temperature range, and a catalyst capable of at least removing HC by oxidation, where the catalyst is arranged at the same position as or downstream of the HC absorbent. When it is found that the HC absorbent is in a state ready for desorbing the absorbed HC (S16, S18) and the internal combustion engine is in a specified decelerating state (S14), fuel supply to some of the cylinders of an internal combustion engine is stopped while fuel is supplied to the other cylinders (partial fuel cut) (S22).Type: GrantFiled: June 17, 2005Date of Patent: November 10, 2009Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Jidosha Engineering Kabushiki KaishaInventors: Masayuki Yamashita, Katsuhiko Miyamoto, Seiji Shiota
-
Publication number: 20090240421Abstract: A fuel control device for an internal combustion engine determines that the internal combustion engine is in a transient state, by a criterion D, and makes fuel correction, where the transient-state criterion D is set to be a more relaxed criterion (=|?THaf|) when forcible modulation control is being performed, compared with a normal criterion (=|?THn|) used when the forcible modulation control is not being performed.Type: ApplicationFiled: January 29, 2009Publication date: September 24, 2009Inventors: Katsuhiko MIYAMOTO, Tetsuya Watanabe, Masashi Takahashi, Kinichi Iwachido
-
Publication number: 20070237323Abstract: Terminals are connected via cables in a star-shaped fashion with respect to a HUB in a LAN. Each of the cables includes therein signal lines and power feed lines. The HUB includes therein a power feed section. The power feed section and the power feed lines of each cable are connected to measure a value of current which flows in the power feed lines. If it is judged based on the measured current value that the terminal connected to the corresponding cable is a telephone terminal, the power feeding to the corresponding power feed lines is continued. On the other hand, if the terminal is judged to be a terminal other than the telephone terminal, the power feeding is stopped.Type: ApplicationFiled: June 6, 2007Publication date: October 11, 2007Applicant: OKI ELECTRIC INDUSTRY CO., LTD.Inventor: Katsuhiko Miyamoto
-
Publication number: 20070180817Abstract: In an exhaust system, there are provided an HC absorbent which absorbs HC contained in exhaust when in a specified low-temperature range and desorbs the absorbed HC when it exceeds said low-temperature range, and a catalyst capable of at least removing HC by oxidation, where the catalyst is arranged at the same position as or downstream of the HC absorbent. When it is found that the HC absorbent is in a state ready for desorbing the absorbed HC (S16, S18) and the internal combustion engine is in a specified decelerating state (S14), fuel supply to some of the cylinders of an internal combustion engine is stopped while fuel is supplied to the other cylinders (partial fuel cut) (S22).Type: ApplicationFiled: June 17, 2005Publication date: August 9, 2007Inventors: Masayuki Yamashita, Katsuhiko Miyamoto, Seiji Shiota
-
Patent number: 7242764Abstract: Terminals are connected via cables in a star-shaped fashion with respect to a HUB in a LAN. Each of the cables includes therein signal lines and power feed lines. The HUB includes therein a power feed section. The power feed section and the power feed lines of each cable are connected to measure a value of current which flows in the power feed lines. If it is judged based on the measured current value that the terminal connected to the corresponding cable is a telephone terminal, the power feeding to the corresponding power feed lines is continued. On the other hand, if the terminal is judged to be a terminal other than the telephone terminal, the power feeding is stopped.Type: GrantFiled: December 4, 2003Date of Patent: July 10, 2007Assignee: Oki Electric Industry Co., Ltd.Inventor: Katsuhiko Miyamoto
-
Publication number: 20060236678Abstract: The present invention relates to a degradation estimating apparatus for an unburned fuel component adsorption catalyst, which is connected with an internal combustion engine and has an unburned fuel component adsorbent and an oxygen storage component. The apparatus includes a degradation estimating unit for making estimation for a degradation of the unburned fuel component adsorption catalyst on the basis of a first term and a second term. The first term that is from the cancellation of the fuel supply to detecting a variation of an upstream side air-fuel ratio occurring due to the increase of the reductant quantity in the exhaust gas. The second term that is from the cancellation of the fuel supply to detecting of a variation of the downstream side air-fuel ratio due to an increase of the reductant quantity.Type: ApplicationFiled: April 20, 2006Publication date: October 26, 2006Inventors: Hiroshi Tanada, Yasuyuki Hatsuda, Takehisa Fujita, Takaharu Hashimoto, Keisuke Tashiro, Mizuki Anai, Mitsutaka Kojima, Masayuki Yamashita, Katsuhiko Miyamoto
-
Patent number: 7063056Abstract: There is provided a valve timing control apparatus for an engine, which comprises a variable valve mechanism capable of varying at least one of an opening timing of intake valves and a closing timing of exhaust valves in an engine, an elapsed time detecting device that detects a time period elapsed after cold-starting of the engine, and a timing control device that controls the variable valve mechanism. The timing control device provides advance angle control such that the opening timing of the intake valves and/or the closing timing of the exhaust valves is advanced to be earlier than an exhaust top dead center until the elapsed time period detected by the elapsed time detecting device has reached a predetermined time period.Type: GrantFiled: May 25, 2004Date of Patent: June 20, 2006Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Jidosha Engineering Kabushiki KaishaInventors: Hideo Nakai, Katsuhiko Miyamoto, Yoshiyuki Hoshiba, Katsuyuki Maeda, Seiji Shiota
-
Patent number: 7063068Abstract: A variable valve timing controller includes an intake-valve and an exhaust-valve. When the engine is started, the intake-valve and the exhaust-valve are operated in a first mode in which the exhaust-valve is closed before top dead center and then the intake-valve is opened. When a first predetermined condition is met, the intake-valve and the exhaust-valve are operated in a second mode in which the opening time of the intake-valve in the first mode is advanced before top dead center.Type: GrantFiled: April 29, 2004Date of Patent: June 20, 2006Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Jidosha Engineering Kabushiki KaishaInventors: Hideo Nakai, Katsuhiko Miyamoto, Yoshiyuki Hoshiba, Katsuyuki Maeda, Seiji Shiota
-
Patent number: 6971379Abstract: There is provided a combustion chamber structure in an internal combustion engine in which, at a peripheral portion of a combustion chamber, a gap between a cylinder head lower face and a piston upper face is small in intake-to-intake and exhaust-to-exhaust zones and gradually increases toward an intake-to-exhaust zone. According to such design, the mixture in the peripheral portion of the combustion chamber can smoothly flow from the intake-to-intake and exhaust-to-exhaust zones to the intake-to-exhaust zone along the peripheral face of the cylinder. The flow of air-fuel mixture from the intake-to-intake zone collides at the center of the intake-to-exhaust zone with the flow of mixture from the exhaust-to-exhaust zone, and the combined flow goes over a conical tapered portion in the upper face of the piston and vigorously enters a central recessed portion thereof. Therefore, it is possible to satisfactorily mix an air-fuel mixture with a simplified configuration.Type: GrantFiled: October 21, 2004Date of Patent: December 6, 2005Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Tomoharu Sakai, Takeshi Hasegawa, Takafumi Shigemori, Toshiaki Umemura, Yoshiyuki Hoshiba, Katsuhiko Miyamoto, Kiyotaka Hosono, Hideki Miyamoto, Yu Yokoyama
-
Publication number: 20050263118Abstract: There is provided a valve timing control apparatus for an engine, which comprises a variable valve mechanism capable of varying at least one of an opening timing of intake valves and a closing timing of exhaust valves in an engine, an elapsed time detecting device that detects a time period elapsed after cold-starting of the engine, and a timing control device that controls the variable valve mechanism. The timing control device provides advance angle control such that the opening timing of the intake valves and/or the closing timing of the exhaust valves is advanced to be earlier than an exhaust top dead center until the elapsed time period detected by the elapsed time detecting device has reached a predetermined time period.Type: ApplicationFiled: May 25, 2004Publication date: December 1, 2005Inventors: Hideo Nakai, Katsuhiko Miyamoto, Yoshiyuki Hoshiba, Katsuyuki Maeda, Seiji Shiota
-
Patent number: 6966299Abstract: An electronic control unit adjusts an electronic throttle valve to a starting opening in a cold start mode of an engine, then maintains the opening of the electronic throttle valve so that an engine rotational speed detected by a crank angle sensor increases to a target rotational speed, and increases the opening of the electronic throttle valve and retards an ignition timing if the engine rotational speed is increased above the target rotational speed.Type: GrantFiled: June 8, 2004Date of Patent: November 22, 2005Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Jidosha Engineering Kabushiki KaishaInventors: Katsuhiko Miyamoto, Hideo Nakai, Seiji Shiota, Katsuyuki Maeda