Patents by Inventor Masanobu Natsuhara

Masanobu Natsuhara 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: 7749450
    Abstract: A fluid handling apparatus 10 has a plurality of fluid handling subassemblies 16, each of which is mounted in a corresponding one of mounting recessed portions 14 of a plate body 12. Each of the fluid handling subassemblies 16 includes: an injecting section 26 for injecting a fluid; a fluidized section 28 for receiving the fluid from the injecting section 26 to allow the fluid to continuously flow downwards; a fluid housing chamber 30 for receiving the fluid from the fluidized section 28; a wall portion 20 formed so as to extend in substantially vertical directions between the fluid housing chamber 30 and the fluidized section 28; an opening 20a for allowing the fluid in the fluidized section 28 to enter the fluid housing chamber 30; and a surface-area increasing means (22, 32, 34) for increasing the area of a contact surface with the fluid in the fluidized section 28.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: July 6, 2010
    Assignee: Enplas Corporation
    Inventors: Takuhito Ohse, Noriyuki Kawahara, Masanobu Natsuhara
  • Patent number: 7473400
    Abstract: There is provided an inexpensive microfluid handling device which is capable of simply controlling the flow of plural kinds of very small amounts of liquids (microsamples) independently of a driving source and which is suitable for a POC inspection. In the microfluid handling device 1, there is formed a fine groove 10 forming a microchannel for allowing a liquid sample to move due to capillarity. At one end of the fine groove 10 of the microfluid handling device 1, a storage portion 6 (7) is formed for injecting a sample S1 (S2) into the fine groove 10. At the other end of the fine groove 10, there is formed a final storage portion 8 capable of being used for taking out the sample S1 (S2) flowing through the fine groove 10 due to capillarity. The storage portion 6 (7) is open to the atmosphere. The bottom of the final storage portion 8 is sealed with a sealing protrusion 11 capable of being broken off, and is open by breaking the sealing protrusion 11 off.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: January 6, 2009
    Assignee: Enplas Corporation
    Inventors: Yasuhiro Watanabe, Masanobu Natsuhara
  • Publication number: 20070111304
    Abstract: A fluid handling apparatus 10 has a plurality of fluid handling subassemblies 16, each of which is mounted in a corresponding one of mounting recessed portions 14 of a plate body 12. Each of the fluid handling subassemblies 16 includes: an injecting section 26 for injecting a fluid; a fluidized section 28 for receiving the fluid from the injecting section 26 to allow the fluid to continuously flow downwards; a fluid housing chamber 30 for receiving the fluid from the fluidized section 28; a wall portion 20 formed so as to extend in substantially vertical directions between the fluid housing chamber 30 and the fluidized section 28; an opening 20a for allowing the fluid in the fluidized section 28 to enter the fluid housing chamber 30; and a surface-area increasing means (22, 32, 34) for increasing the area of a contact surface with the fluid in the fluidized section 28.
    Type: Application
    Filed: November 13, 2006
    Publication date: May 17, 2007
    Inventors: Takuhito Ohse, Noriyuki Kawahara, Masanobu Natsuhara
  • Publication number: 20040184964
    Abstract: There is provided an inexpensive microfluid handling device which is capable of simply controlling the flow of plural kinds of very small amounts of liquids (microsamples) independently of a driving source and which is suitable for a POC inspection. In the microfluid handling device 1, there is formed a fine groove 10 forming a microchannel for allowing a liquid sample to move due to capillarity. At one end of the fine groove 10 of the microfluid handling device 1, a storage portion 6 (7) is formed for injecting a sample S1 (S2) into the fine groove 10. At the other end of the fine groove 10, there is formed a final storage portion 8 capable of being used for taking out the sample S1 (S2) flowing through the fine groove 10 due to capillarity. The storage portion 6 (7) is open to the atmosphere. The bottom of the final storage portion 8 is sealed with a sealing protrusion 11 capable of being broken off, and is open by breaking the sealing protrusion 11 off.
    Type: Application
    Filed: March 16, 2004
    Publication date: September 23, 2004
    Inventors: Yasuhiro Watanabe, Masanobu Natsuhara