Patents by Inventor Ryoichi Nakanishi
Ryoichi Nakanishi 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: 10898877Abstract: The present invention provides a separation material including porous polymer particles that comprise at least one of styrene and divinylbenzene as a monomer unit at a proportion of 90% by mass or more based on the total amount of the monomers; and a coating layer that comprises a macromolecule having hydroxyl groups and covers at least a portion of the surface of the porous polymer particles, wherein the coating amount provided by the coating layer is 1 to 15 mg/m2 per unit specific surface area of the porous polymer particles.Type: GrantFiled: January 19, 2016Date of Patent: January 26, 2021Assignee: Showa Denko Materials Co., Ltd.Inventors: Masaru Watanabe, Yasushi Gotoh, Michio Butsugan, Ryoichi Nakanishi
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Patent number: 10875008Abstract: The present invention provides a separation material that comprises porous polymer particles comprising a styrene-based monomer as a monomer unit; and a coating layer comprising a macromolecule having hydroxyl groups, which covers at least a portion of the surface of the porous polymer particles, and the separation material has a 5% compressive deformation modulus of 100 to 1,000 MPa, and has a mode diameter in the pore size distribution of 0.1 to 0.5 ?m.Type: GrantFiled: January 19, 2016Date of Patent: December 29, 2020Assignee: SHOWA DENKO MATERIALS CO., LTD.Inventors: Masaru Watanabe, Tomoko Higashiuchi, Fumihiko Kawauchi, Yasushi Gotoh, Michio Butsugan, Ryoichi Nakanishi
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Publication number: 20180264435Abstract: The present invention provides a separation material including porous polymer particles that comprise at least one of styrene and divinylbenzene as a monomer unit at a proportion of 90% by mass or more based on the total amount of the monomers; and a coating layer that comprises a macromolecule having hydroxyl groups and covers at least a portion of the surface of the porous polymer particles, wherein the coating amount provided by the coating layer is 1 to 15 mg/m2 per unit specific surface area of the porous polymer particles.Type: ApplicationFiled: January 19, 2016Publication date: September 20, 2018Inventors: Masaru WATANABE, Yasushi GOTOH, Michio BUTSUGAN, Ryoichi NAKANISHI
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Publication number: 20170368533Abstract: The present invention provides a separation material that comprises porous polymer particles comprising a styrene-based monomer as a monomer unit; and a coating layer comprising a macromolecule having hydroxyl groups, which covers at least a portion of the surface of the porous polymer particles, and the separation material has a 5% compressive deformation modulus of 100 to 1,000 MPa, and has a mode diameter in the pore size distribution of 0.1 to 0.5 ?m.Type: ApplicationFiled: January 19, 2016Publication date: December 28, 2017Applicant: Hitachi Chemical Company, LTD.Inventors: Masaru WATANABE, Tomoko HIGASHIUCHI, Fumihiko KAWAUCHI, Yasushi GOTOH, Michio BUTSUGAN, Ryoichi NAKANISHI
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Patent number: 7050677Abstract: An optical fiber includes an entrance face that is optically coupleable with a device for transmitting a light beam through the optical fiber. The entrance face includes a core region and a cladding region surrounding the core region. The cladding region is at least partially covered with a coating, which is made of metal, for example. That is, the coating is formed over a whole area of the cladding region or the coating is formed on an area of the cladding region defined in a vicinity of the core region. The coating has a mirror surface to increase the reflectivity thereof and enhances the reflectivity of the entrance face.Type: GrantFiled: November 4, 2003Date of Patent: May 23, 2006Assignee: PENTAX CorporationInventors: Masahiro Fushimi, Eiichi Ito, Tomohiro Fujita, Tadashi Minakuchi, Akira Arimoto, Mitsunori Iima, Yoshimi Obara, Shinji Tsukamoto, Ryoichi Nakanishi
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Patent number: 6996311Abstract: An optical communication device includes a light source that emits a light beam and an optical fiber having a core and a cladding. The optical fiber has a light entrance face having a core region and a cladding region. The light beam emitted by the light source is converged by a converging lens on the core region and is transmitted through the optical fiber. The entrance face is configured to generate a light intensity distribution in light reflected by the light entrance face depending on a position where the light beam is incident on the entrance face, a converging lens arranged between the light source and the optical fiber.Type: GrantFiled: November 6, 2003Date of Patent: February 7, 2006Assignee: PENTAX CorporationInventors: Masahiro Fushimi, Eiichi Ito, Tomohiro Fujita, Tadashi Minakuchi, Akira Arimoto, Mitsunori Iima, Yoshimi Obara, Shinji Tsukamoto, Ryoichi Nakanishi
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Publication number: 20060013535Abstract: An optical communication device includes a light source that emits a light beam and an optical fiber having a core and a cladding. The optical fiber has a light entrance face having a core region and a cladding region. The light beam emitted by the light source is converged by a converging lens on the core region and is transmitted through the optical fiber. The entrance face is configured to generate a light intensity distribution in light reflected by the light entrance face depending on a position where the light beam is incident on the entrance face, a converging lens arranged between the light source and the optical fiber.Type: ApplicationFiled: November 6, 2003Publication date: January 19, 2006Applicant: PENTAX CorporationInventors: Masahiro Fushimi, Eiichi Ito, Tomohiro Fujita, Tadashi Minakuchi, Akira Arimoto, Mitsunori Iima, Yoshimi Obara, Shinji Tsukamoto, Ryoichi Nakanishi
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Publication number: 20040120646Abstract: An optical fiber includes an entrance face that is optically coupleable with a device for transmitting a light beam through the optical fiber. The entrance face includes a core region and a cladding region surrounding the core region. The cladding region is at least partially covered with a coating, which is made of metal, for example. That is, the coating is formed over a whole area of the cladding region or the coating is formed on an area of the cladding region defined in a vicinity of the core region. The coating has a mirror surface to increase the reflectivity thereof and enhances the reflectivity of the entrance face.Type: ApplicationFiled: November 4, 2003Publication date: June 24, 2004Applicant: PENTAX CorporationInventors: Masahiro Fushimi, Eiichi Ito, Tomohiro Fujita, Tadashi Minakuchi, Akira Arimoto, Mitsunori Iima, Yoshimi Obara, Shinji Tsukamoto, Ryoichi Nakanishi
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Patent number: 6624652Abstract: The CPU of a test apparatus sends, to a subject test board, a test command containing an address in an address space where circuit blocks of the subject test board are mapped and a command code specifying an operation to be performed to the address. Test program executed by the CPU of the subject test board allow the CPU to extract the address and the command code included in the test command from the test apparatus and then to perform the operation specified by the command code to the address.Type: GrantFiled: May 1, 2001Date of Patent: September 23, 2003Assignee: Pentax CorporationInventors: Mikio Horie, Ryoichi Nakanishi
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Patent number: 6529465Abstract: Disclosed is an optical system for an optical disk drive for reading/writing data from/in an optical disk. The optical system includes a light source emitting a parallel laser beam, a deflector having a rotatable mirror surface. The parallel laser beam emitted by the light source is incident on the mirror surface of the deflector and is deflected towards an objective lens system which faces the optical disk. A relay lens system is provided between the deflector and the objective lens system such that the mirror surface and a front principal plane of the objective lens system have a substantially conjugate relationship.Type: GrantFiled: March 1, 2001Date of Patent: March 4, 2003Assignees: Pentax Corporation, Terastor CorporationInventors: Toshiyuki Kase, Hiroshi Nishikawa, Wataru Kubo, Ryoichi Nakanishi, Amit Jain
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Patent number: 6341106Abstract: Disclosed is an optical disc drive. The optical disc drive is provided with an arm member carrying an objective optical system and a light emitting system. The arm member is rotatable about an axis at one end portion thereof. On the other end portion of the arm member, the objective optical system is mounted. A detecting system is further provided for receiving light reflected by the optical disc via the objective optical system. The detecting system detects data related to an orientation of a beam spot formed by the reflected beam on its light receiving surface. Further provided is a control system which determines a current position of the arm member based on the data related to the orientation of the beam spot.Type: GrantFiled: November 4, 1998Date of Patent: January 22, 2002Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Ryoichi Nakanishi, Hiroshi Nishikawa, Suguru Takishima, Shimpei Shinozaki
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Publication number: 20010039486Abstract: The CPU of a test apparatus sends, to a subject test board, a test command containing an address in an address space where circuit blocks of the subject test board are mapped and a command code specifying an operation to be performed to the address. Test program executed by the CPU of the subject test board allow the CPU to extract the address and the command code included in the test command from the test apparatus and then to perform the operation specified by the command code to the address.Type: ApplicationFiled: May 1, 2001Publication date: November 8, 2001Applicant: ASAHI KOGAKU KOGYO KABUSHIKI KAISHAInventors: Mikio Horie, Ryoichi Nakanishi
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Publication number: 20010026524Abstract: Disclosed is an optical system for an optical disk drive for reading/writing data from/in an optical disk. The optical system includes a light source emitting a parallel laser beam, a deflector having a rotatable mirror surface. The parallel laser beam emitted by the light source is incident on the mirror surface of the deflector and is deflected towards an objective lens system which faces the optical disk. A relay lens system is provided between the deflector and the objective lens system such that the mirror surface and a front principal plane of the objective lens system have a substantially conjugate relationship.Type: ApplicationFiled: March 1, 2001Publication date: October 4, 2001Applicant: ASAHI KOGAKU KOGYO KABUSHIKI KAISHAInventors: Toshiyuki Kase, Hiroshi Nishikawa, Wataru Kubo, Ryoichi Nakanishi, Amit Jain
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Patent number: 4087668Abstract: An electrical contact with a fixed conductor and a movable conductor, comprises a plurality of plate springs, a plurality of contacts, the plate springs and the contacts being mounted into a single unit with an arrangement of those members in a substantial orthogonal relation to each other. The opposite ends of each of the plate springs being supported so as to provide an arrangement of contacts spaced at a fixed interval.Type: GrantFiled: January 15, 1976Date of Patent: May 2, 1978Assignee: Kabushiki Kaisha MeidenshaInventors: Ryoichi Nakanishi, Masaru Ito