Patents by Inventor Tadanobu NIIMI
Tadanobu NIIMI 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: 10184785Abstract: Provided is an optical receptacle (140) having an installation plane (141), an optical plane, and a reference plane (147). An inclination angle of the reference plane (147) with respect to the installation plane (141) is smaller than an inclination angle of the optical plane with respect to the installation plane (141). Then, a first inclination angle ?1 that is the inclination angle of the reference plane (147) with respect to the installation plane (141) and a second inclination angle ?2 that is an inclination angle of the optical plane with respect to the reference plane (147) are measured. Then, the first inclination angle ?1 is added to the second inclination angle ?2 to calculate a third inclination angle ?3 that is the inclination angle of the optical plane with respect to the installation plane (141).Type: GrantFiled: December 17, 2015Date of Patent: January 22, 2019Assignee: ENPLAS CORPORATIONInventors: Shimpei Morioka, Yuki Saito, Tadanobu Niimi
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Publication number: 20170356738Abstract: Provided is an optical receptacle (140) having an installation plane (141), an optical plane, and a reference plane (147). An inclination angle of the reference plane (147) with respect to the installation plane (141) is smaller than an inclination angle of the optical plane with respect to the installation plane (141). Then, a first inclination angle ?1 that is the inclination angle of the reference plane (147) with respect to the installation plane (141) and a second inclination angle ?2 that is an inclination angle of the optical plane with respect to the reference plane (147) are measured. Then, the first inclination angle ?1 is added to the second inclination angle ?2 to calculate a third inclination angle ?3 that is the inclination angle of the optical plane with respect to the installation plane (141).Type: ApplicationFiled: December 17, 2015Publication date: December 14, 2017Inventors: Shimpei MORIOKA, Yuki SAITO, Tadanobu NIIMI
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Patent number: 9360642Abstract: In an embodiment, an optical receptacle includes a first lens face that is disposed on a first surface 2a on a photoelectric conversion device 3 side in an optical receptacle main body so that a portion of light of the light of a light-emitting element 7 is incident thereon, a first reflective surface 14 that is disposed on a second surface 2b on the side opposite to the first surface 2a and reflects the light that has been incident on the first lens face 11, and a second reflective surface 16 that is disposed on the first surface 2a continuously with the first lens face 11 so that a remaining portion of light of the light of the light-emitting element 7 is incident thereon and reflects the incident remaining portion of light towards a light-receiving element 8 as monitor light are included.Type: GrantFiled: February 20, 2013Date of Patent: June 7, 2016Assignee: ENPLAS CORPORATIONInventors: Shimpei Morioka, Tadanobu Niimi
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Patent number: 9223098Abstract: A lens array satisfies a+b+d1+e+?L?W1 where: a: positional accuracy of first lens faces 11, b: positional accuracy of second lens faces 12, d1: positional accuracy of light-emitting elements 7, e: positional accuracy of optical fibers 5, ?L=?×?T×L (?: coefficient of linear expansion of lens array main body 4; ?T: temperature change in the lens array main body 4; and L: distance from a fixed position on a first surface 4a to a position of a lens face on the first surface 4a farthest from the fixed position), W1: a distance between attachment positions before and after movement, under a premise that a photovoltaic device 3 is moved from an attachment position at which optical coupling efficiency between the light-emitting elements 7 and fiber ends 5a indicates a maximum efficiency to an attachment position at which efficiency reduction equivalent to 2 dB is indicated.Type: GrantFiled: December 8, 2011Date of Patent: December 29, 2015Assignee: ENPLAS CORPORATIONInventors: Shimpei Morioka, Tadanobu Niimi, Kazutaka Shibuya
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Patent number: 9164267Abstract: As a result of a fourth surface being a surface on a gate side, a merging position of a molten resin material during molding of a lens array main body is placed away from formation positions of lens faces, and as a result of the three dimensional shape of a third recessing section, during molding of the lens array main body, the flow of molten resin material from a surface side that opposes the fourth surface into a flow path corresponding with an area between a first recessing section and a second recessing section can be suppressed.Type: GrantFiled: December 8, 2011Date of Patent: October 20, 2015Assignee: ENPLAS CORPORATIONInventors: Kazutaka Shibuya, Tadanobu Niimi
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Patent number: 9057852Abstract: An optical receptacle disposed between a photoelectric conversion device and an optical fiber includes a light separating section for separating incident light into monitor light and fiber coupled light, which section includes a segmented reflective surface and a segmented transmitting surface. The reflective surface for reflecting light as monitor light is disposed in a segmented manner with spaces in a segmentation direction. The transmitting surface is disposed in a segmented manner in areas where the reflective surface is not disposed, so as to transmit a portion of light other than the reflected light in a direction directly oppose to the direction of the reflected light and to advance the other portion of light towards the side of an end face of the optical fiber.Type: GrantFiled: November 12, 2012Date of Patent: June 16, 2015Assignee: ENPLAS CORPORATIONInventors: Shimpei Morioka, Tadanobu Niimi, Shinya Kanke, Masahiro Tanazawa
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Publication number: 20150086165Abstract: In an embodiment, an optical receptacle includes a first lens face that is disposed on a first surface 2a on a photoelectric conversion device 3 side in an optical receptacle main body so that a portion of light of the light of a light-emitting element 7 is incident thereon, a first reflective surface 14 that is disposed on a second surface 2b on the side opposite to the first surface 2a and reflects the light that has been incident on the first lens face 11, and a second reflective surface 16 that is disposed on the first surface 2a continuously with the first lens face 11 so that a remaining portion of light of the light of the light-emitting element 7 is incident thereon and reflects the incident remaining portion of light towards a light-receiving element 8 as monitor light are included.Type: ApplicationFiled: February 20, 2013Publication date: March 26, 2015Inventors: Shimpei Morioka, Tadanobu Niimi
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Publication number: 20140328558Abstract: An optical receptacle disposed between a photoelectric conversion device and an optical fiber includes a light separating section for separating incident light into monitor light and fiber coupled light, which section includes a segmented reflective surface and a segmented transmitting surface. The reflective surface for reflecting light as monitor light is disposed in a segmented manner with spaces in a segmentation direction. The transmitting surface is disposed in a segmented manner in areas where the reflective surface is not disposed, so as to transmit a portion of light other than the reflected light in a direction directly oppose to the direction of the reflected light and to advance the other portion of light towards the side of an end face of the optical fiber.Type: ApplicationFiled: November 12, 2012Publication date: November 6, 2014Applicant: ENPLAS CORPORATIONInventors: Shimpei Morioka, Tadanobu Niimi, Shinya Kanke, Masahiro Tanazawa
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Publication number: 20130266260Abstract: A lens array satisfies a+b+d1+e+?L?W1 where: a: positional accuracy of first lens faces 11, b: positional accuracy of second lens faces 12, d1: positional accuracy of light-emitting elements 7, e: positional accuracy of optical fibers 5, ?L=?×?T×L (?: coefficient of linear expansion of lens array main body 4; ?T: temperature change in the lens array main body 4; and L: distance from a fixed position on a first surface 4a to a position of a lens face on the first surface 4a farthest from the fixed position), W1: a distance between attachment positions before and after movement, under a premise that a photovoltaic device 3 is moved from an attachment position at which optical coupling efficiency between the light-emitting elements 7 and fiber ends 5a indicates a maximum efficiency to an attachment position at which efficiency reduction equivalent to 2 dB is indicated.Type: ApplicationFiled: December 8, 2011Publication date: October 10, 2013Applicant: ENPLAS CORPORATIONInventors: Shimpei Morioka, Tadanobu Niimi, Kazutaka Shibuya
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Publication number: 20130242401Abstract: As a result of a fourth surface being a surface on a gate side, a merging position of a molten resin material during molding of a lens array main body is placed away from formation positions of lens faces, and as a result of the three dimensional shape of a third recessing section, during molding of the lens array main body, the flow of molten resin material from a surface side that opposes the fourth surface into a flow path corresponding with an area between a first recessing section and a second recessing section can be suppressed.Type: ApplicationFiled: December 8, 2011Publication date: September 19, 2013Applicant: ENPLAS CORPORATIONInventors: Kazutaka Shibuya, Tadanobu NIIMI