Patents by Inventor Kazunori Katami

Kazunori Katami 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: 6899482
    Abstract: A multi-color writing instrument such as a ballpoint pen or mechanical pencil, which is adapted such that a selection of a writing color can be easily performed even under poor lighting conditions and/or by a person with poor eyesight. The writing instrument includes a plurality of reservoir tubes containing different writing colors, which are accommodated in a barrel. Operating portions are provided on the reservoir tubes and exposed outside the barrel. The operating portions can be differentiated from each other by touch. Thereby a specific one of the reservoir tubes can be selected by the operating portions for use.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: May 31, 2005
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Publication number: 20030215279
    Abstract: There is provided a multi-color writing instrument such as a ballpoint pen or mechanical pencil, which is adapted such that a selection of a writing color can be easily performed even in a gloomy place or even by a person with poor eyesight. The writing instrument includes a plurality of reservoir tubes containing different writing colors, which are accommodated in a barrel. Operating portions are provided on the reservoir tubes and exposed outside the barrel. The operating portions have touch feeling means for differentiating the operating portions from each other by touch. Thereby a specific one of the reservoir tubes can be selected by the operating portions for use.
    Type: Application
    Filed: May 19, 2003
    Publication date: November 20, 2003
    Applicant: TOMBOW PENCIL CO., LTD
    Inventor: Kazunori Katami
  • Patent number: D436625
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: January 23, 2001
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D438250
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: February 27, 2001
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D438251
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: February 27, 2001
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D439616
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: March 27, 2001
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D525301
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: July 18, 2006
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D532044
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: November 14, 2006
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D476035
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: June 17, 2003
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D476687
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: July 1, 2003
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D489758
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: May 11, 2004
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D490849
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: June 1, 2004
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D490853
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: June 1, 2004
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D581462
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: November 25, 2008
    Assignee: Tombow Pencil Co. Ltd.
    Inventor: Kazunori Katami
  • Patent number: D497389
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: October 19, 2004
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D499140
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: November 30, 2004
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D590882
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: April 21, 2009
    Assignee: Tombow Pencil Co. Ltd.
    Inventor: Kazunori Katami
  • Patent number: D590884
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: April 21, 2009
    Assignee: Tombow Pencil Co., Ltd.
    Inventors: Kazunori Katami, Shunichi Taniguchi
  • Patent number: D500080
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: December 21, 2004
    Assignee: Tombow Pencil Co., Ltd.
    Inventor: Kazunori Katami
  • Patent number: D593602
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: June 2, 2009
    Assignee: Tombow Pencil Co., Ltd.
    Inventors: Kazunori Katami, Shunichi Taniguchi