Patents by Inventor Mutsuhiro Matsuyama
Mutsuhiro Matsuyama 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: 8774575Abstract: An optical waveguide includes a clad layer, a core layer and a clad layer which are laminated together in this order from a lower side thereof. Within the core layer, a core portion and a side clad portion provided adjacent to the core portion so as to surround side surfaces of the core portion are formed. Further, a part of the side clad portion prevents a left side end of the core portion from being exposed outside. A mirror formation region is constituted from a region consisting of such a part of the side clad portion and a part of each of the clad layers located thereabove and therebelow. This mirror formation region is subjected to digging processing so that a concave portion is formed. An inner surface of this concave portion serves as the mirror. From the mirror, a material other than a material constituting the core portion, that is, a material constituting each of the clad layers and a material constituting the side clad portion are exposed.Type: GrantFiled: December 1, 2009Date of Patent: July 8, 2014Assignee: Sumitomo Bakelite Company LimitedInventors: Makoto Fujiwara, Kenji Miyao, Yoji Shirato, Koji Choki, Mutsuhiro Matsuyama
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Patent number: 8588566Abstract: According to the electronic apparatus and cellular phone of the present invention, in an optical waveguide forming body of a flexible cable, an air layer is provided in a deforming section which experiences bending deformation as a result of the movement of a second body relative to a first body (either a pivoting or sliding movement), and the position of this air layer becomes located on the outer circumferential side of a core when the deforming section undergoes bending deformation. As a result of this, it is possible to ensure sufficient flexibility and to also achieve a sufficient improvement in the folding endurance of the core portion for this optical waveguide forming body to be utilized in practical applications. Moreover, it is possible to suppress light loss and achieve high-speed, large-capacity transmissions even when the optical waveguide forming body of a flexible cable experiences bending deformation due to the relative movement of the second body relative to the first body.Type: GrantFiled: June 9, 2009Date of Patent: November 19, 2013Assignee: Sumitomo Bakelite Co., Ltd.Inventors: Mutsuhiro Matsuyama, Koji Choki, Tetsuya Mori, Kei Watanabe
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Patent number: 8420293Abstract: Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures.Type: GrantFiled: August 10, 2011Date of Patent: April 16, 2013Assignees: Sumitomo Bakelite Co., Ltd., Promerus, LLCInventors: Koji Choki, Tetsuya Mori, Ramakrishna Ravikiran, Makoto Fujiwara, Keizo Takahama, Kei Watanabe, Hirotaka Nonaka, Yumiko Otake, Andrew Bell, Larry Rhodes, Dino Amoroso, Mutsuhiro Matsuyama
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Patent number: 8208769Abstract: A substrate on which an optical element is mounted is provided, including: an optical element; an optical circuit substrate which is formed by an optical waveguide layer having a core portion and cladding portions; and an electrical circuit substrate on which is provided a mounting portion that is used for mounting the optical element, wherein the optical element is mounted on the electrical circuit substrate via the optical circuit substrate and wherein the optical circuit substrate has an optical element mounted thereon and is provided with a receptor structure having a conductive portion that conducts electricity between an electrode of the optical element and an electrode of the electrical circuit substrate.Type: GrantFiled: May 21, 2010Date of Patent: June 26, 2012Assignee: Sumitomo Bakelite Co., Ltd.Inventors: Koji Choki, Mutsuhiro Matsuyama, Kenji Miyao, Keizo Takahama, Tetsuya Mori, Kei Watanabe, Hiroshi Owari, Yoji Shirato
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Publication number: 20120064458Abstract: Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures.Type: ApplicationFiled: August 10, 2011Publication date: March 15, 2012Applicants: PROMERUS, LLC, SUMITOMO BAKELITE COMPANY LIMITEDInventors: Koji CHOKI, Tetsuya Mori, Ramakrishna Ravikiran, Makoto Fujiwara, Keizo Takahama, Kei Watanabe, Hirotaka Nonaka, Yumiko Otake, Andrew Bell, Larry Rhodes, Dino Amoroso, Mutsuhiro Matsuyama
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Patent number: 8053166Abstract: Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures.Type: GrantFiled: September 3, 2009Date of Patent: November 8, 2011Assignees: Sumitomo Bakelite Co. Ltd., Promerus, LLC.Inventors: Koji Choki, Tetsuya Mori, Ramakrishna Ravikiran, Makoto Fujiwara, Keizo Takahama, Kei Watanabe, Hirotaka Nonaka, Yumiko Otake, Andrew Bell, Larry Rhodes, Dino Amoroso, Mutsuhiro Matsuyama
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Publication number: 20110243499Abstract: An optical waveguide includes a clad layer, a core layer and a clad layer which are laminated together in this order from a lower side thereof. Within the core layer, a core portion and a side clad portion provided adjacent to the core portion so as to surround side surfaces of the core portion are formed. Further, a part of the side clad portion prevents a left side end of the core portion from being exposed outside. A mirror formation region is constituted from a region consisting of such a part of the side clad portion and a part of each of the clad layers located thereabove and therebelow. This mirror formation region is subjected to digging processing so that a concave portion is formed. An inner surface of this concave portion serves as the mirror. From the mirror, a material other than a material constituting the core portion, that is, a material constituting each of the clad layers and a material constituting the side clad portion are exposed.Type: ApplicationFiled: December 1, 2009Publication date: October 6, 2011Applicant: SUMITOMO BAKELITE COMPANY LIMITEDInventors: Makoto Fujiwara, Kenji Miyao, Yoji Shirato, Koji Choki, Mutsuhiro Matsuyama
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Patent number: 8021825Abstract: Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures.Type: GrantFiled: September 3, 2009Date of Patent: September 20, 2011Assignees: Sumitomo Bakelite Co., Ltd., Promerus, LLC.Inventors: Koji Choki, Tetsuya Mori, Ramakrishna Ravikiran, Makoto Fujiwara, Keizo Takahama, Kei Watanabe, Hirotaka Nonaka, Yumiko Otake, Andrew Bell, Larry Rhodes, Dino Amoroso, Mutsuhiro Matsuyama
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Publication number: 20110158596Abstract: An optical waveguide is provided. The optical waveguide includes a plurality of core portions and a plurality of clad portions in which each core portion being provided between a pair of clad portions. Each of the plurality of clad portions comprises: a low refractive-index area being in contact with the core portion, wherein a refractive index of the low refractive-index area is lower than that of the plurality of core portions; and a plurality of high refractive-index areas separated from the core portion through the low refractive-index area, wherein a refractive index of the plurality of high refractive-index areas is higher than the refractive index of the low refractive-index area. The plurality of high refractive-index areas are provided in the clad portion in an aligned manner or in a scattered manner. The plurality of high refractive-index areas are constituted of the same kind of material as a constituent material of the plurality of core portions.Type: ApplicationFiled: August 28, 2009Publication date: June 30, 2011Applicant: SUMITOMO BAKELITE CO., LTD.Inventors: Shinsuke Terada, Mutsuhiro Matsuyama, Koji Choki
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Publication number: 20110085771Abstract: According to the electronic apparatus and cellular phone of the present invention, in an optical waveguide forming body of a flexible cable, an air layer is provided in a deforming section which experiences bending deformation as a result of the movement of a second body relative to a first body (either a pivoting or sliding movement), and the position of this air layer becomes located on the outer circumferential side of a core when the deforming section undergoes bending deformation. As a result of this, it is possible to ensure sufficient flexibility and to also achieve a sufficient improvement in the folding endurance of the core portion for this optical waveguide forming body to be utilized in practical applications. Moreover, it is possible to suppress light loss and achieve high-speed, large-capacity transmissions even when the optical waveguide forming body of a flexible cable experiences bending deformation due to the relative movement of the second body relative to the first body.Type: ApplicationFiled: June 9, 2009Publication date: April 14, 2011Applicant: SUMITOMO BAKELITE CO., LTD.Inventors: Mutsuhiro Matsuyama, Koji Choki, Tetsuya Mori, Kei Watanabe
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Patent number: 7869670Abstract: A substrate on which an optical element is mounted is provided, including: an optical element; an optical circuit substrate which is formed by an optical waveguide layer having a core portion and cladding portions; and an electrical circuit substrate on which is provided a mounting portion that is used for mounting the optical element, wherein the optical element is mounted on the electrical circuit substrate via the optical circuit substrate and wherein the optical circuit substrate has an optical element mounted thereon and is provided with a receptor structure having a conductive portion that conducts electricity between an electrode of the optical element and an electrode of the electrical circuit substrate.Type: GrantFiled: May 30, 2007Date of Patent: January 11, 2011Assignee: Sumitomo Bakelite Co., Ltd.Inventors: Koji Choki, Mutsuhiro Matsuyama, Kenji Miyao, Keizo Takahama, Tetsuya Mori, Kei Watanabe, Hiroshi Owari, Yoji Shirato
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Patent number: 7820356Abstract: Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures.Type: GrantFiled: November 22, 2004Date of Patent: October 26, 2010Assignees: Sumitomo Bakelite Co. Ltd., Promerus, LLCInventors: Koji Choki, Tetsuya Mori, Ramakrishna Ravikiran, Makoto Fujiwara, Keizo Takahama, Kei Watanabe, Hirotaka Nonaka, Yumiko Otake, Andrew Bell, Larry Rhodes, Dino Amoroso, Mutsuhiro Matsuyama
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Publication number: 20100226606Abstract: A substrate on which an optical element is mounted is provided, including: an optical element; an optical circuit substrate which is formed by an optical waveguide layer having a core portion and cladding portions; and an electrical circuit substrate on which is provided a mounting portion that is used for mounting the optical element, wherein the optical element is mounted on the electrical circuit substrate via the optical circuit substrate and wherein the optical circuit substrate has an optical element mounted thereon and is provided with a receptor structure having a conductive portion that conducts electricity between an electrode of the optical element and an electrode of the electrical circuit substrate.Type: ApplicationFiled: May 21, 2010Publication date: September 9, 2010Applicant: SUMITOMO BAKELITE CO., LTD.Inventors: Koji CHOKI, Mutsuhiro Matsuyama, Kenji Miyao, Keizo Takahama, Tetsuya Mori, Kei Watanabe, Hiroshi Owari, Yoji Shirato
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Publication number: 20100062378Abstract: Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures.Type: ApplicationFiled: September 3, 2009Publication date: March 11, 2010Applicants: SUMITOMO BAKELITE CO., LTD., PROMERUS, LLCInventors: Koji Choki, Tetsuya Mori, Ramakrishna Ravikiran, Makoto Fujiwara, Keizo Takahama, Kei Watanabe, Hirotaka Nonaka, Yumiko Otake, Andrew Bell, Larry Rhodes, Dino Amoroso, Mutsuhiro Matsuyama
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Publication number: 20100061688Abstract: Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures.Type: ApplicationFiled: September 3, 2009Publication date: March 11, 2010Applicants: SUMITOMO BAKELITE CO., LTD., PROMERUS, LLCInventors: Koji Choki, Tetsuya Mori, Ramakrishna Ravikiran, Makoto Fujiwara, Keizo Takahama, Kei Watanabe, Hirotaka Nonaka, Yumiko Otake, Andrew Bell, Larry Rhodes, Dino Amoroso, Mutsuhiro Matsuyama
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Publication number: 20090245720Abstract: A substrate on which an optical element is mounted is provided, including: an optical element; an optical circuit substrate which is formed by an optical waveguide layer having a core portion and cladding portions; and an electrical circuit substrate on which is provided a mounting portion that is used for mounting the optical element, wherein the optical element is mounted on the electrical circuit substrate via the optical circuit substrate and wherein the optical circuit substrate has an optical element mounted thereon and is provided with a receptor structure having a conductive portion that conducts electricity between an electrode of the optical element and an electrode of the electrical circuit substrate.Type: ApplicationFiled: May 30, 2007Publication date: October 1, 2009Applicant: SUMITOMO BAKELITE CO.,LTD.Inventors: Koji Choki, Mutsuhiro Matsuyama, Kenji Miyao, Keizo Takahama, Tetsuya Mori, Kei Watanabe, Hiroshi Owari, Yoji Shirato
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Publication number: 20070148566Abstract: Embodiments in accordance with the present invention provide waveguide structures and methods of forming such structures where core and laterally adjacent cladding regions are defined. Some embodiments of the present invention provide waveguide structures where core regions are collectively surrounded by laterally adjacent cladding regions and cladding layers and methods of forming such structures.Type: ApplicationFiled: November 22, 2004Publication date: June 28, 2007Applicant: SUMITOMO BAKELITE CO., LTD.Inventors: Koji Choki, Tetsuya Mori, Ramakrishna Ravikiran, Makoto Fujiwara, Keizo Takahama, Kei Watanabe, Hirotaka Nonaka, Yumiko Otake, Andrew Bell, Larry Rhodes, Dino Amoroso, Mutsuhiro Matsuyama
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Publication number: 20040129916Abstract: The present invention provides a gelled composition comprising a polymer and a solvent, said polymer being obtained by an addition reaction between a linear copolymer having two terminal hydrosilyl groups and a compound having 3 or more ethylenic double bonds, whereinType: ApplicationFiled: May 24, 2002Publication date: July 8, 2004Inventors: Kazuchiyo Takaoka, Mutsuhiro Matsuyama, Kenji Hyodo, Wakana Aizawa, Takakazu Hino, Naoki Suzuki