Patents by Inventor Hisaya Motojima

Hisaya Motojima 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).

  • Oxidizing composition in powder form
    Patent number: 5576212
    Abstract: An oxidizing composition in the form of powder for oxidizing a chemiluminescent substance, including an oxidizing agent and a binder.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: November 19, 1996
    Assignee: Biosensor Laboratories Co., Ltd.
    Inventors: Katsu Honzawa, Seiji Kawaguchi, Kazuhiro Atsumi, Fumihiko Shimomura, Takahiko Ishiguro, Hisaya Motojima
  • A fiber optic device for measuring liquids which are drawn into an end of the device to a predetermined distance from the end of the optical fibers
    Patent number: 5523845
    Abstract: The first branch 1a of the optical fiber 1 is connected to the light source 2, and the second branch 1b is connected to the optical measuring unit 3. A taper-shaped tip member 8 is fitted to a tip end of the optical fiber unit 1 with the use of a jig member 4. The inner hollow space 7 in the tip member 8 is connected with the air suction device 11, through the gap 5 formed between the optical fiber unit 1 and the jig member 4 and the air suction tube 10. The air suction device 11 discharges air from the inner hollow space 7 to suck liquid through the through-hole 6 into the inner hollow space. The air suction device 11 is controlled by the controller 12. Because the optical fiber unit can directly irradiate liquid with light, measurement can be performed with high sensitivity. The optical fiber unit is prevented from contamination.
    Type: Grant
    Filed: January 25, 1995
    Date of Patent: June 4, 1996
    Assignee: Biosensor Laboratories Co., Ltd.
    Inventors: Katsu Honzawa, Kazuhiro Atsumi, Humihiko Shimomura, Seiji Kawaguchi, Yuichiro Sakamoto, Hisaya Motojima, Masayuki Masuko, Tsuyoshi Hayakawa