Patents by Inventor Takashi Otsu

Takashi Otsu 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: 10451643
    Abstract: The sample dispensing device sucks a liquid sample from a predetermined container and then discharges the sample to another container. The sample dispensing device includes a nozzle tip that sucks and holds the sample; a dispensing nozzle to which the nozzle tip can be detachably attached via a fitting part; a dispensing nozzle position control means that controls the position of the dispensing nozzle with respect to the predetermined container and the other container; a nozzle tip removing means that removes the nozzle tip from the dispensing nozzle; and a discarding box into which water can be supplied, and in which the nozzle tip removed from the dispensing nozzle is discarded. The nozzle tip is made of a water-soluble material, and after being removed from the dispensing nozzle by the nozzle tip removing means, the nozzle tip is dissolved by water in the discarding box.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: October 22, 2019
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Kouichi Obari, Eiji Takaya, Takashi Otsu
  • Publication number: 20170059600
    Abstract: The sample dispensing device sucks a liquid sample from a predetermined container and then discharges the sample to another container. The sample dispensing device includes a nozzle tip that sucks and holds the sample; a dispensing nozzle to which the nozzle tip can be detachably attached via a fitting part; a dispensing nozzle position control means that controls the position of the dispensing nozzle with respect to the predetermined container and the other container; a nozzle tip removing means that removes the nozzle tip from the dispensing nozzle; and a discarding box into which water can be supplied, and in which the nozzle tip removed from the dispensing nozzle is discarded. The nozzle tip is made of a water-soluble material, and after being removed from the dispensing nozzle by the nozzle tip removing means, the nozzle tip is dissolved by water in the discarding box.
    Type: Application
    Filed: May 15, 2015
    Publication date: March 2, 2017
    Inventors: Kouichi OBARI, Eiji TAKAYA, Takashi OTSU
  • Patent number: 8101701
    Abstract: Fumaric acid derivatives and ophthalmic lenses using them are disclosed. More specifically, a fumaric acid derivative having a hydrophilic group and a silicon-containing alkyl group within a molecule, and contact lenses or intraocular lenses using the same are disclosed. The fumaric acid derivatives of the present invention provide, on one hand, superior oxygen permeability by having a silicon-containing alkyl group within the molecular structure, and on the other hand, improved compatibility with other hydrophilic monomers by having a hydrophilic group within the same molecule. When ophthalmic lenses obtained by polymerizing monomer compositions containing the fumaric acid derivative are constructed as, for example, water content lenses, lenses with high oxygen permeability independent from the water content may be obtained, wherein the fumaric acid derivatives is superior in compatibility with the hydrophilic monomer used in combination and allows the combination in various mixing ratios.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: January 24, 2012
    Assignees: Menicon Nect Co., Ltd., Mie University
    Inventors: Takahito Itoh, Takahiro Uno, Masato Ohnishi, Yasuyuki Kato, Takashi Otsu
  • Publication number: 20080132666
    Abstract: The present invention relates to fumaric acid derivatives and ophthalmic lenses using them. More specifically, the present invention relates to a fumaric acid derivative having a hydrophilic group and a silicon-containing alkyl group within a molecule, and to contact lenses or intraocular lenses. The fumaric acid derivatives of the present invention provide, on one hand, superior oxygen permeability by having a silicon-containing alkyl group within the molecular structure, and on the other hand, improved compatibility with other hydrophilic monomers by having a hydrophilic group within the same molecule.
    Type: Application
    Filed: June 22, 2007
    Publication date: June 5, 2008
    Inventors: Takahito Itoh, Takahiro Uno, Masato Ohnishi, Yasuyuki Kato, Takashi Otsu
  • Patent number: 6231075
    Abstract: An inflation system for inflating an air bag installed in a vehicle features an impact sensor for measuring an impact exerted on the vehicle and an inflator having a housing with a gas chamber and gas jettison opening for flowing the gas out of the housing and into the air bag. The inflator includes a first gas generator for inflating the air bag, a shutter for restricting gas flow through the gas jettison opening, and a second gas generator for moving the shutter to a reduced gas jettison opening area position. The housing and second gas generator are arranged such that the second gas generator directs the shutter into the outrushing gas flow leading to the jettison opening and shifts until the pressure balance on opposite sides of the axially shifting shutter are equal at which point the shuttle is in a flow limiting mode.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: May 15, 2001
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Takashi Otsu