Patents by Inventor Ryoichi Koseki

Ryoichi Koseki 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: 7891486
    Abstract: An objective of the present invention is to provide a shipping tray for optical elements that prevents toppling of optical elements during transportation and optimally maintains the optical characteristics of the optical elements. In a shipping tray for optical elements, single edges of a plurality of optical elements, each having two main surfaces formed as horizontal flat surfaces, are sequentially disposed upright in the lateral and longitudinal directions on an adhesive tape provided on a base surface of a main container; and the plurality of optical elements is covered with a cover in which is formed a plurality of concavities for individually accommodating the plurality of optical elements. Each concavity in the cover has an aperture portion provided in a plateau portion thereof, into which is inserted one of the optical elements upright with the free edge side protruding therefrom, and the shape of the aperture portion is oval.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 22, 2011
    Assignee: Nihon Dempa Kogyo Co., Ltd.
    Inventors: Motoo Takada, Ryoichi Koseki
  • Patent number: 7572349
    Abstract: An optical device, such as an optical low-pass filter, and a production method therefor, which prevents damage, and thus maintains optical characteristics are provided. The optical device includes a plurality of optical plates joined together with adhesive. The adhesive is spread to extend to the peripheral edge of the optical plates and to the outer periphery of the principal plane surrounding the plurality of optical plates, thus forming a protective coating.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: August 11, 2009
    Assignee: Nihon Dempa Kogyo Co., Ltd.
    Inventors: Motoo Takada, Ryoichi Koseki, Kazuya Takahashi, Yoshimitsu Iizuka
  • Publication number: 20080245473
    Abstract: An optical device, such as an optical low-pass filter, and a production method therefor, which prevents damage, and thus maintains optical characteristics are provided. The optical device includes a plurality of optical plates joined together with adhesive. The adhesive is spread to extend to the peripheral edge of the optical plates and to the outer periphery of the principal plane surrounding the plurality of optical plates, thus forming a protective coating.
    Type: Application
    Filed: June 5, 2008
    Publication date: October 9, 2008
    Inventors: Motoo Takada, Ryoichi Koseki, Kazuya Takahashi, Yoshimitsu Iizuka
  • Patent number: 7399512
    Abstract: An optical device, such as an optical low-pass filter, and a production method therefor, which prevents damage, and thus maintains optical characteristics are provided. The optical device includes a plurality of optical plates joined together with adhesive. The adhesive is spread to extend to the peripheral edge of the optical plates and to the outer periphery of the principal plane surrounding the plurality of optical plates, thus forming a protective coating.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: July 15, 2008
    Assignee: Nihon Dempa Kogyo Co., Ltd.
    Inventors: Motoo Takada, Ryoichi Koseki, Kazuya Takahashi, Yoshimitsu Iizuka
  • Publication number: 20080149510
    Abstract: An objective of the present invention is to provide a shipping tray for optical elements that prevents toppling of optical elements during transportation and optimally maintains the optical characteristics of the optical elements. In a shipping tray for optical elements, single edges of a plurality of optical elements, each having two main surfaces formed as horizontal flat surfaces, are sequentially disposed upright in the lateral and longitudinal directions on an adhesive tape provided on a base surface of a main container; and the plurality of optical elements is covered with a cover in which is formed a plurality of concavities for individually accommodating the plurality of optical elements. Each concavity in the cover has an aperture portion provided in a plateau portion thereof, into which is inserted one of the optical elements upright with the free edge side protruding therefrom, and the shape of the aperture portion is oval.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 26, 2008
    Applicant: Nihon Dempa Kogyo Co., Ltd.
    Inventors: Motoo Takada, Ryoichi Koseki
  • Publication number: 20050014077
    Abstract: The invention relates to an optical device such as an optical low-pass filter, and a production method therefor, which prevents damage, and thus maintains optical characteristics. In the optical device of the invention, a plurality of optical plates are stuck together with adhesive. The adhesive is spread to span to the side face or the outer periphery of the principal plane surrounding the plurality of optical plates, to thereby form a protective coat. Moreover the production method for an optical device, for example an optical low-pass filter, of the invention, where a plurality of optical plates are stuck together with adhesive, involves; spreading an adhesive between principal planes of the plurality of optical plates; pressing the plurality of optical plates from both principal planes to overflow the adhesive from between the both principal planes; and effusing and spreading the adhesive to span to the surrounding side face or periphery of the principal plane to thereby form a protective coat.
    Type: Application
    Filed: July 12, 2004
    Publication date: January 20, 2005
    Inventors: Motoo Takada, Ryoichi Koseki, Kazuya Takahashi, Yoshimitsu Iizuka