Patents by Inventor Akio Ohkubo
Akio Ohkubo 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: 10534199Abstract: According to the present invention, a functional sheet, comprising a polarizing or photochromic functional layer and protective layers provided on both surfaces of the functional layer can be provided. The protective layers include an aromatic polycarbonate resin sheet or film. At least one of the protective layers is a co-extruded sheet or film including an aromatic polycarbonate resin layer and an acrylic-based resin layer provided on one surface or both surfaces of the aromatic polycarbonate resin layer. At least one surface of the functional sheet is of the acrylic-based resin layer. Also according to the present invention, a lens using such a functional sheet can be provided.Type: GrantFiled: February 19, 2015Date of Patent: January 14, 2020Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Akio Ohkubo, Hideaki Kimura, Masukazu Hirata, Masaki Yagoura
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Patent number: 9063276Abstract: Provided is a polarizing lens which is excellent especially in terms of impact resistance, appearance, and prevention of eye strain and which has high precision of the surface shape. The polarizing lens is formed by laminating a sheet of an aromatic polycarbonate through an adhesive layer to each surface of a film having polarizing properties, curving the resultant laminate so as to impart spherical or aspherical surfaces thereto to obtain a polarizing sheet, inserting the polarizing sheet into a mold, and injecting an aromatic polycarbonate, wherein the polarizing sheet is obtained through the laminating so that the stretch axis of one of the aromatic-polycarbonate sheets is perpendicular to the absorption axis of the film having the polarizing properties.Type: GrantFiled: June 9, 2011Date of Patent: June 23, 2015Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Terutaka Tokumaru, Ken Shimomai, Katunori Suzuki, Kyousuke Nakamura, Masaki Yagoura, Akio Ohkubo
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Publication number: 20150160479Abstract: According to the present invention, a functional sheet, comprising a polarizing or photochromic functional layer and protective layers provided on both surfaces of the functional layer can be provided. The protective layers include an aromatic polycarbonate resin sheet or film. At least one of the protective layers is a co-extruded sheet or film including an aromatic polycarbonate resin layer and an acrylic-based resin layer provided on one surface or both surfaces of the aromatic polycarbonate resin layer. At least one surface of the functional sheet is of the acrylic-based resin layer. Also according to the present invention, a lens using such a functional sheet can be provided.Type: ApplicationFiled: February 19, 2015Publication date: June 11, 2015Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Akio OHKUBO, Hideaki KIMURA, Masukazu HIRATA, Masaki YAGOURA
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Patent number: 8936363Abstract: The present invention relates to a polarizing lens molded by inserting a polarizing sheet bent into a sphere or an asphere after having an aromatic polycarbonate sheet bonded via an adhesive layer to both surfaces of a film with polarized nature into a mold, and injecting aromatic polycarbonate, wherein heat treatment at a temperature not less than a temperature of 50° C. lower than the glass transition point and less than the glass transition point for an appropriate time has been performed after injecting aromatic polycarbonate to approximate a designed value of the lens curvature.Type: GrantFiled: February 11, 2014Date of Patent: January 20, 2015Assignees: Mitsubishi Gas Chemical Company, Inc., MGC Filsheet Co., Ltd.Inventors: Terutaka Tokumaru, Katsunori Suzuki, Ken Shimomai, Masaki Yagoura, Kyousuke Nakamura, Akio Ohkubo
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Publication number: 20140151911Abstract: The present invention relates to a polarizing lens molded by inserting a polarizing sheet bent into a sphere or an asphere after having an aromatic polycarbonate sheet bonded via an adhesive layer to both surfaces of a film with polarized nature into a mold, and injecting aromatic polycarbonate, wherein heat treatment at a temperature not less than a temperature of 50° C. lower than the glass transition point and less than the glass transition point for an appropriate time has been performed after injecting aromatic polycarbonate to approximate a designed value of the lens curvature.Type: ApplicationFiled: February 11, 2014Publication date: June 5, 2014Applicants: MGC FILSHEET CO., LTD., MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Terutaka TOKUMARU, Katsunori Suzuki, Ken Shimomai, Masaki Yagoura, Kyousuke Nakamura, Akio Ohkubo
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Publication number: 20130070196Abstract: Provided is a polarizing lens which is excellent especially in terms of impact resistance, appearance, and prevention of eye strain and which has high precision of the surface shape. The polarizing lens is formed by laminating a sheet of an aromatic polycarbonate through an adhesive layer to each surface of a film having polarizing properties, curving the resultant laminate so as to impart spherical or aspherical surfaces thereto to obtain a polarizing sheet, inserting the polarizing sheet into a mold, and injecting an aromatic polycarbonate, wherein the polarizing sheet is obtained through the laminating so that the stretch axis of one of the aromatic-polycarbonate sheets is perpendicular to the absorption axis of the film having the polarizing properties.Type: ApplicationFiled: June 9, 2011Publication date: March 21, 2013Applicants: MGC FILSHEET CO., LTD., MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Terutaka Tokumaru, Ken Shimomai, Katunori Suzuki, Kyousuke Nakamura, Masaki Yagoura, Akio Ohkubo
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Publication number: 20130010253Abstract: The present invention relates to a polarizing lens molded by inserting a polarizing sheet bent into a sphere or an asphere after having an aromatic polycarbonate sheet bonded via an adhesive layer to both surfaces of a film with polarized nature into a mold, and injecting aromatic polycarbonate, wherein heat treatment at a temperature not less than a temperature of 50° C. lower than the glass transition point and less than the glass transition point for an appropriate time has been performed after injecting aromatic polycarbonate to approximate a designed value of the lens curvature.Type: ApplicationFiled: February 22, 2011Publication date: January 10, 2013Applicants: MGC Filsheet Co., Ltd., Mitsubishi Gas Chemical Company, Inc.Inventors: Terutaka Tokumaru, Katsunori Suzuki, Ken Shimomai, Masaki Yagoura, Kyousuke Nakamura, Akio Ohkubo
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Publication number: 20120206689Abstract: According to the present invention, a functional sheet, comprising a polarizing or photochromic functional layer and protective layers provided on both surfaces of the functional layer can be provided. The protective layers include an aromatic polycarbonate resin sheet or film. At least one of the protective layers is a co-extruded sheet or film including an aromatic polycarbonate resin layer and an acrylic-based resin layer provided on one surface or both surfaces of the aromatic polycarbonate resin layer. At least one surface of the functional sheet is of the acrylic-based resin layer. Also according to the present invention, a lens using such a functional sheet can be provided.Type: ApplicationFiled: October 20, 2010Publication date: August 16, 2012Applicants: MGC FILSHEET CO., LTD., MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Akio Ohkubo, Hideaki Kimura, Masukazu Hirata, Masaki Yagoura
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Patent number: 5041845Abstract: A heat transfer recording apparatus for transmitting the ink of a heat transfer medium to a recording medium to thereby record an image on the recording medium has conveying member for conveying the recording medium, winding member for winding the heat transfer medium after image recording, a cutter for cutting the recording medium after image recording, a drive source, first force transmitting member for transmitting the drive force of the drive source to the winding member and second force transmitting member for transmitting the drive force of the drive source to the cutter.Type: GrantFiled: July 11, 1990Date of Patent: August 20, 1991Assignee: Canon Kabushiki KaishaInventors: Akio Ohkubo, Toshiyuki Hayashi, Masahiro Funakoshi
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Patent number: 5017945Abstract: A method of and an apparatus for recording an image. The method of recording an image while a plurality of long recording sheets are selectively being fed to a recording section, comprising the steps of specifying a desired one of the plurality of recording sheets; and locating the leading edge of the desired one at a ready state at a position which is downstream with respect to a recording position of the recording section in the direction in which the recording sheet is fed. The apparatus is arranged such that image recording is performed in accordance with image information while a recording sheet unwound from one of first and second sheet rolls is being fed to a recording section including a recording head. One of the first and second recording sheets is set to a predetermined position in the recording section, after recording onto the recording sheet is completed.Type: GrantFiled: May 16, 1990Date of Patent: May 21, 1991Assignee: Canon Kabushiki KaishaInventors: Keizo Sasai, Kenkichi Sakuragi, Mitsunori Nakamura, Akio Ohkubo, Motoaki Yoshino
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Patent number: 4868674Abstract: A recording apparatus adapted to accommodate first and second recording sheets rolled into rolls, selectively convey one of the first and second recording sheets to a recording section having a recording head, and record an image in accordance with image information on the selected recording sheet. The apparatus is capable of initializing the positions of the leading ends of the recording sheets in such a manner that they are positioned at a predetermined stand-by position. The apparatus may be adapted to display a message requesting the initialization after a cover over the recording sheets has been closed. Alternatively, the apparatus may have sensors for detecting the recording sheets and may be adapted to perform the initialization on the basis of the outputs of the sensors by cutting portions of the recording sheets at the leading ends thereof alternately.Type: GrantFiled: August 11, 1987Date of Patent: September 19, 1989Assignee: Canon Kabushiki KaishaInventors: Mitsunori Nakamura, Kenkichi Sakuragi, Keizo Sasai, Akio Ohkubo
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Patent number: 4849824Abstract: A recording apparatus has a recording device for recording an image corresponding to image information on a recording sheet, a first housing, a second housing openable relative to the first housing, a first loading portion provided in the first housing and enabling a first rolled recording sheet to be loaded thereinto, a second loading portion provided in the first housing and enabling a second rolled recording sheet to be loaded thereinto, a first conveying device provided in the first housing for conveying the recording sheet loaded into the first loading portion, and a second conveying device provided in the second housing for conveying the recording sheet loaded into the second loading portion.Type: GrantFiled: December 29, 1987Date of Patent: July 18, 1989Assignee: Canon Kabushiki KaishaInventors: Kenkichi Sakuragi, Akio Ohkubo, Keizo Sasai, Mitsunori Nakamura