Patents by Inventor Nobuhiro Hashimoto
Nobuhiro Hashimoto 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: 12210003Abstract: A liquid chromatographic apparatus which removes air bubbles during preparatory operation for apparatus startup includes a liquid feeding pump to feed a solvent, an injector to inject a sample into the solvent, a separation column to receive the solvent and the sample through the injector and separate the sample into components, a detector to detect the components supplied from the separation column, a pressure sensor to measure a pressure in a solvent flow channel of the liquid feeding pump, and a controller to control a purge operation for removing air bubbles in the solvent flow channel by the liquid feeding pump, determine whether a pressure change amount in the solvent flow channel measured by the pressure sensor during the purge operation is a specified change amount or larger, and complete the air bubble removal operation when the pressure change amount is the specified change amount or larger.Type: GrantFiled: March 5, 2021Date of Patent: January 28, 2025Assignee: HITACHI HIGH-TECH CORPORATIONInventors: Midori Tobita, Yuichiro Hashimoto, Nobuhiro Tsukada
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Patent number: 10739531Abstract: To provide a connector cleaning tool capable of precisely removing dust even on an end surface of a connector having irregularities. The connector cleaning tool includes a buffer body, and an adhesive body arranged with the buffer body, in which in a case where the connector cleaning tool is pressed toward a connection end surface of a connector on which a guide pin is protrudingly provided, the guide pin is inserted into the buffer body via the adhesive body.Type: GrantFiled: September 14, 2016Date of Patent: August 11, 2020Assignee: TOMOEGAWA CO., LTD.Inventors: Mitsuyoshi Takanashi, Nobuhiro Hashimoto, Yoshihiro Goto, Masayoshi Suzuki, Makoto Goto
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Publication number: 20190025524Abstract: An object of the present invention is to provide a cleaner which is excellent in dust removability, has a small amount of adhesive residue and is able to clean sufficiently over the details of unevenness even when cleaning an end face having unevenness, and the present invention provides a cleaner which is excellent in dust removability, has a small amount of adhesive residue and is able to clean sufficiently over the details of unevenness even when cleaning an end face having unevenness by setting a peeling force of an adhesive body to 0.1 to 10 N/20 mm and a hardness of the adhesive body to 12 to 52.Type: ApplicationFiled: January 23, 2017Publication date: January 24, 2019Inventors: Makoto Goto, Masayoshi Suzuki, Yoshihiro Goto, Nobuhiro Hashimoto
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Publication number: 20180231717Abstract: To provide a connector cleaning tool capable of precisely removing dust even on an end surface of a connector having irregularities. The connector cleaning tool includes a buffer body, and an adhesive body arranged with the buffer body, in which in a case where the connector cleaning tool is pressed toward a connection end surface of a connector on which a guide pin is protrudingly provided, the guide pin is inserted into the buffer body via the adhesive body.Type: ApplicationFiled: September 14, 2016Publication date: August 16, 2018Inventors: Mitsuyoshi TAKANASHI, Nobuhiro HASHIMOTO, Yoshihiro GOTO, Masayoshi SUZUKI, Makoto GOTO
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Patent number: 9995856Abstract: A lens array fabrication method for fabricating a lens array includes: receiving pins (16) of a film attaching instrument (jig) in second guide holes (10) of a film-containing base plate; bonding a placement area and an adhesion layer (F); removing the pins (16); causing a detachment between a first detachment film (C) and a pressure-sensitive adhesive optical film (D); separating three layers (D) to (F) from two layers (B) and (C); receiving the pins (16) in first guide holes (7) of a lens array main unit; fitting a film holding protrusion (15) in a depression part (6); bonding the film (D) to a bonding region (i); removing the pins (16); and causing a detachment between the film (D) and a second detachment film (E).Type: GrantFiled: January 19, 2017Date of Patent: June 12, 2018Assignee: ENPLAS CORPORATIONInventors: Masahiro Tanazawa, Shimpei Morioka, Makoto Goto, Nobuhiro Hashimoto
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Publication number: 20180074267Abstract: The present invention provides an end-face cleaner for cleaning an end face having a pin projected thereon, comprising an adhesive layer configured to be pierced with a pin, and a support configured to support the adhesive layer and expose a partial surface of the adhesive layer.Type: ApplicationFiled: March 17, 2016Publication date: March 15, 2018Applicant: Tomoegawa Co., Ltd.Inventors: Masayoshi Suzuki, Nobuhiro Hashimoto, Hiroshi Sugiyama, Akiyoshi Shima
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Publication number: 20170131440Abstract: A lens array fabrication method for fabricating a lens array includes: receiving pins (16) of a film attaching instrument (jig) in second guide holes (10) of a film-containing base plate; bonding a placement area and an adhesion layer (F); removing the pins (16); causing a detachment between a first detachment film (C) and a pressure-sensitive adhesive optical film (D); separating three layers (D) to (F) from two layers (B) and (C); receiving the pins (16) in first guide holes (7) of a lens array main unit; fitting a film holding protrusion (15) in a depression part (6); bonding the film (D) to a bonding region (i); removing the pins (16); and causing a detachment between the film (D) and a second detachment film (E).Type: ApplicationFiled: January 19, 2017Publication date: May 11, 2017Inventors: Masahiro TANAZAWA, Shimpei MORIOKA, Makoto GOTO, Nobuhiro HASHIMOTO
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Publication number: 20170131486Abstract: A film attaching jig (III) is used in a method for fabricating a lens array to attach a pressure-sensitive adhesive optical film (D) onto an adhesion area (i) and has: (1) a main body having a first end face in a z?-direction being an end face to be directed to a film-containing base plate (II) and a lens array main unit (I); (2) a film holding projection that is provided on the first end face and protrudes in parallel to the z?-direction toward the film-containing base plate (II) and the lens array main unit (I), the film holding projection having a holding area (iii) at its front end face for temporarily holding the pressure-sensitive adhesive optical film (D); and (3) a pair of pins or holes disposed on the first end face in parallel to the z?-direction, and provided at opposite positions over the film holding projection.Type: ApplicationFiled: January 25, 2017Publication date: May 11, 2017Inventors: Masahiro TANAZAWA, Shimpei MORIOKA, Makoto GOTO, Nobuhiro HASHIMOTO
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Patent number: 9575281Abstract: A lens array fabrication method for fabricating a lens array includes: receiving pins of a film attaching instrument (jig) in second guide holes of a film-containing base plate; bonding a placement area and an adhesion layer (F); removing the pins; causing a detachment between a first detachment film (C) and a pressure-sensitive adhesive optical film (D); separating three layers (D) to (F) from two layers (B) and (C); receiving the pins in first guide holes of a lens array main unit; fitting a film holding protrusion in a depression part; bonding the film (D) to a bonding region (i); removing the pins; and causing a detachment between the film (D) and a second detachment film (E).Type: GrantFiled: December 28, 2012Date of Patent: February 21, 2017Assignees: ENPLAS CORPORATION, TOMOEGAWA CO., LTD.Inventors: Masahiro Tanazawa, Shimpei Morioka, Makoto Goto, Nobuhiro Hashimoto
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Patent number: 9470845Abstract: Disclosed is an optical connection component manufacturing apparatus that manufactures an optical connection component in which a refractive index matching body is attached to a front end face of an optical fiber. A movement mechanism, an X-axis motor, and a movement stage that move the optical fiber set a first interval at which a refractive index matching liquid held on a holding face is adsorbed, by a Coulomb force according to the charging, onto a front end face of the optical fiber charged by a static electricity generating device and then enlarge the interval. The static electricity generating device applies electric charge to the optical fiber in the state of the first interval and continuously applies electric charge to the optical fiber even after the interval starts to be enlarged.Type: GrantFiled: March 20, 2014Date of Patent: October 18, 2016Assignee: TOMOEGAWA CO., LTD.Inventors: Masayoshi Suzuki, Nobuhiro Hashimoto
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Patent number: 9400350Abstract: Disclosed is an optical connection component manufacturing apparatus that manufactures an optical connection component in which a refractive index matching body is attached to a front end face of an optical fiber. The optical connection component manufacturing apparatus includes: a holding unit that includes a holding face holding a refractive index matching liquid including the refractive index matching body; a dispenser that supplies the refractive index matching liquid to the holding face; and a static electricity generating device that charges the optical fiber so that the refractive index matching liquid held on the holding face is adsorbed onto the front end face of the optical fiber, wherein the holding face has an outer peripheral edge connected in a curved line.Type: GrantFiled: March 20, 2014Date of Patent: July 26, 2016Assignee: TOMOEGAWA CO., LTD.Inventors: Masayoshi Suzuki, Nobuhiro Hashimoto
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Patent number: 9372303Abstract: Disclosed is an optical connection component manufacturing apparatus that manufactures an optical connection component in which a refractive index matching body is attached to a front end face of an optical fiber. The optical connection component manufacturing apparatus includes: a holding unit that includes a holding face holding a refractive index matching liquid including the refractive index matching body; a dispenser that supplies the refractive index matching liquid to the holding face; and a static electricity generating device that charges the optical fiber so that the refractive index matching liquid held on the holding face is adsorbed onto the front end face of the optical fiber, wherein the holding face has an outer peripheral edge connected in a curved line.Type: GrantFiled: March 20, 2014Date of Patent: June 21, 2016Assignee: TOMOEGAWA CO., LTD.Inventors: Masayoshi Suzuki, Nobuhiro Hashimoto
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Publication number: 20150234123Abstract: Disclosed is an optical connection component manufacturing apparatus that manufactures an optical connection component in which a refractive index matching body is attached to a front end face of an optical fiber. A movement mechanism, an X-axis motor, and a movement stage that move the optical fiber set a first interval at which a refractive index matching liquid held on a holding face is adsorbed, by a Coulomb force according to the charging, onto a front end face of the optical fiber charged by a static electricity generating device and then enlarge the interval. The static electricity generating device applies electric charge to the optical fiber in the state of the first interval and continuously applies electric charge to the optical fiber even after the interval starts to be enlarged.Type: ApplicationFiled: March 20, 2014Publication date: August 20, 2015Inventors: Masayoshi SUZUKI, Nobuhiro HASHIMOTO
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Publication number: 20150231662Abstract: Disclosed is an optical connection component manufacturing apparatus that manufactures an optical connection component in which a refractive index matching body is attached to a front end face of an optical fiber. The optical connection component manufacturing apparatus includes: a holding unit that includes a holding face holding a refractive index matching liquid including the refractive index matching body; a dispenser that supplies the refractive index matching liquid to the holding face; and a static electricity generating device that charges the optical fiber so that the refractive index matching liquid held on the holding face is adsorbed onto the front end face of the optical fiber, wherein the holding face has an outer peripheral edge connected in a curved line.Type: ApplicationFiled: March 20, 2014Publication date: August 20, 2015Applicant: TOMOEGAWA CO., LTD.Inventors: Masayoshi SUZUKI, Nobuhiro HASHIMOTO
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Publication number: 20150020964Abstract: A lens array fabrication method for fabricating a lens array includes: receiving pins (16) of a film attaching instrument (jig) in second guide holes (10) of a film-containing base plate; bonding a placement area and an adhesion layer (F); removing the pins (16); causing a detachment between a first detachment film (C) and a pressure-sensitive adhesive optical film (D); separating three layers (D) to (F) from two layers (B) and (C); receiving the pins (16) in first guide holes (7) of a lens array main unit; fitting a film holding protrusion (15) in a depression part (6); bonding the film (D) to a bonding region (i); removing the pins (16); and causing a detachment between the film (D) and a second detachment film (E).Type: ApplicationFiled: December 28, 2012Publication date: January 22, 2015Applicants: ENPLAS CORPORATION, TOMOEGAWA CO., LTD.Inventors: Masahiro Tanazawa, Shimpei Morioka, Makoto Goto, Nobuhiro Hashimoto
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Patent number: 8815369Abstract: An adhering jig for an adhesive connecting member is provided, in which the adhesive connecting member can be adhered without being broken even if it is twisted during connection of an optical fiber. The adhesive connecting member of the present invention has a tabular member having insertion holes fitting a shape of the optical connector, and an adhesive connecting member having a certain size. The adhesive connecting member has a strongly adhesive layer and non-adhesive layer, and the adhesive connecting member was arranged at a bottom of the insertion hole via the weakly adhesive layer, so that the non-adhesive layer is lower.Type: GrantFiled: October 27, 2009Date of Patent: August 26, 2014Assignee: Tomoegawa Co., Ltd.Inventors: Nobuhiro Hashimoto, Makoto Gotou
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Patent number: 8611712Abstract: A rubber member optically connects (a) an optical transmission medium or an optical component and (b) another optical transmission medium or another optical component by intervening between the (a) and the (b). An adhesive connecting member comprises a rubber member having a refractive index of 1.35 to 1.55 and an adhesive having a refractive index of 1.35 to 1.55.Type: GrantFiled: March 24, 2009Date of Patent: December 17, 2013Assignee: Tomoegawa Co., Ltd.Inventors: Nobuhiro Hashimoto, Tomoki Furue, Makoto Gotou
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Publication number: 20110198035Abstract: An adhering jig for an adhesive connecting member is provided, in which the adhesive connecting member can be adhered without being broken even if it is twisted during connection of an optical fiber. The adhesive connecting member of the present invention has a tabular member having insertion holes fitting a shape of the optical connector, and an adhesive connecting member having a certain size. The adhesive connecting member has a strongly adhesive layer and non-adhesive layer, and the adhesive connecting member was arranged at a bottom of the insertion hole via the weakly adhesive layer, so that the non-adhesive layer is lower.Type: ApplicationFiled: October 27, 2009Publication date: August 18, 2011Applicant: Tomoegawa Co. LtdInventors: Nobuhiro Hashimoto, Makoto Gotou
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Patent number: D687609Type: GrantFiled: October 27, 2010Date of Patent: August 6, 2013Assignee: Tomoegawa Co., Ltd.Inventors: Nobuhiro Hashimoto, Kyoichi Sasaki, Makoto Goto, Masahiko Hamada
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Patent number: D767839Type: GrantFiled: March 2, 2015Date of Patent: September 27, 2016Assignee: TOMOEGAWA CO., LTD.Inventors: Nobuhiro Hashimoto, Masayoshi Suzuki