Patents by Inventor Masanori Natsuka

Masanori Natsuka 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).

  • Patent number: 9776387
    Abstract: A transparent adhesive sheet for optics, which is capable of satisfying both adhesion and rework property, in view of the above problems of prior art. A production method of a silicone-based transparent adhesive sheet for optics for assembling the optical components, includes a step of forming a surface activation treated surface, in which peel strength after laminating onto an adherend increases with time, as compared with peel strength before lamination. The surface activation treatment is performed by using UV-ray irradiation on at least a part or the entire surface of an adhesive face contacting with the adherend of said transparent adhesive sheet for optics.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: October 3, 2017
    Assignee: TAICA CORPORATION
    Inventors: Yosuke Ono, Tatsuya Nunokawa, Masanori Natsuka, Hiroshi Mataki
  • Publication number: 20150002924
    Abstract: The present invention discloses a transparent adhesive sheet for optics, which is capable of satisfying both adhesion and rework property, in view of the above problems of prior art. A production method of a silicone-based transparent adhesive sheet for optics for assembling the optical components, characterized by forming a surface activation treated surface, in which peel strength after laminating onto an adherend increases with time, as compared with peel strength before lamination, by performing surface activation treatment using UV-ray irradiation on at least a part or the entire surface of an adhesive face contacting with the adherend of said transparent adhesive sheet for optics, and a transparent adhesive sheet for optics obtained from the production method thereof, and the like.
    Type: Application
    Filed: January 7, 2013
    Publication date: January 1, 2015
    Applicant: TAICA CORPORATION
    Inventors: Yosuke Ono, Tatsuya Nunokawa, Masanori Natsuka, Hiroshi Mataki
  • Patent number: 7679004
    Abstract: As means for solving a problem of a positional shift of a land and a hole which is caused by an alignment in the formation of an etching resist layer and a plated resist layer in a method of manufacturing a circuit board, there are provided a method of manufacturing a circuit board including the steps of forming a first resin layer on a surface of an insulating substrate having a conductive layer on the surface and an internal wall of a through hole or/and a non-through hole, forming a second resin layer which is insoluble or slightly soluble in a developing solution for the first resin layer on the first resin layer provided on the surface conductive layer, and removing the first resin layer provided over the hole with the developing solution for the first resin layer, and a method of manufacturing a circuit board including the step of uniformly charging a surface of the first resin layer to induce a potential difference to the first resin layer provided over the hole and the first resin layer provided on th
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: March 16, 2010
    Assignees: Shinko Electric Industries Co., Ltd., Mitsubishi Paper Mills Limited
    Inventors: Katsuya Fukase, Toyoaki Sakai, Munetoshi Irisawa, Toyokazu Komuro, Yasuo Kaneda, Masanori Natsuka, Wakana Aizawa
  • Publication number: 20070181994
    Abstract: As means for solving a problem of a positional shift of a land and a hole which is caused by an alignment in the formation of an etching resist layer and a plated resist layer in a method of manufacturing a circuit board, there are provided a method of manufacturing a circuit board including the steps of forming a first resin layer on a surface of an insulating substrate having a conductive layer on the surface and an internal wall of a through hole or/and a non-through hole, forming a second resin layer which is insoluble or slightly soluble in a developing solution for the first resin layer on the first resin layer provided on the surface conductive layer, and removing the first resin layer provided over the hole with the developing solution for the first resin layer, and a method of manufacturing a circuit board including the step of uniformly charging a surface of the first resin layer to induce a potential difference to the first resin layer provided over the hole and the first resin layer provided on th
    Type: Application
    Filed: March 2, 2005
    Publication date: August 9, 2007
    Applicants: SHINKO ELECTRIC INDUSTRIES CO., LTD., MITSUBISHI PAPER MILLS LIMITED
    Inventors: Katsuya Fukase, Toyoaki Sakai, Munetoshi Irisawa, Toyokazu Komuro, Yasuo Kaneda, Masanori Natsuka, Wakana Aizawa
  • Patent number: 6645685
    Abstract: Disclosed is disclosed a process for producing a printed wiring board which comprises the steps of: a) exposing a wiring board having at least one photoconductive layer in which its chargeability is changed by light exposure on at least one surface of a conductive support which comprises an insulating substrate and at least one metal conductive layer provided at least one surface thereof through a resist pattern; b) charging the photoconductive layer to form an electrostatic latent image; c) forming a toner image on the photoconductive layer by toner developing treatment; d) removing a portion of the photoconductive layer to which no toner is attached by dissolution to form a resist image; and e) removing a portion of the metal conductive layer other than a portion where the resist image is formed by etching.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: November 11, 2003
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Masakazu Takata, Hidetoshi Miura, Tamotsu Horiuchi, Munetoshi Irisawa, Masanori Natsuka, Kenji Tsuda, Kazuchiyo Takaoka, Kenji Hyodo
  • Patent number: 6551753
    Abstract: There is disclosed a liquid developing method of a printed wiring board using a one-surface stepwise developing system which forms a resist pattern stepwisely according to an electrophotographic reverse developing method on each surface of a material to be developed obtained by forming photo-conductive layers on both surfaces of a both-surfaces copper-clad laminated board, wherein the method comprises the steps of subjecting to a static charging treatment on a surface to which no electrostatic latent image is formed which surface is positioned opposing to an electrostatic latent image-formed surface which is a surface to be exposed, or to a non-developing surface between completion of an exposure treatment and before a liquid toner developing treatment, and subjecting to the liquid toner developing treatment to form a toner image corresponding to the resist pattern on the electrostatically latent image-formed surface.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: April 22, 2003
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Masanori Natsuka, Yasuo Kaneda, Munetoshi Irisawa, Toyokazu Komuro, Noritaka Inoue, Kenji Hyodo
  • Publication number: 20020102772
    Abstract: Disclosed is disclosed a process for producing a printed wiring board which comprises the steps of:
    Type: Application
    Filed: September 5, 2001
    Publication date: August 1, 2002
    Inventors: Masakazu Takata, Hidetoshi Miura, Tamotsu Horiuchi, Munetoshi Irisawa, Masanori Natsuka, Kenji Tsuda, Kazuchiyo Takaoka, Kenji Hyodo