Patents by Inventor Kentarou Ogawa

Kentarou Ogawa 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).

  • Publication number: 20150010828
    Abstract: Provided is a separator for an alkaline battery, capable of suppressing reduction in the characteristics of the alkaline battery after storage. The separator for an alkaline battery is interposed between the cathode and anode of the alkaline battery, is used to isolate the active material of both electrodes, and is configured by including 20-90 mass % cellulose fiber and having the remainder being an alkali-resistance synthetic fiber. The cellulose fiber includes a dissolving pulp.
    Type: Application
    Filed: January 16, 2013
    Publication date: January 8, 2015
    Applicant: NIPPON KODOSHI CORPORATION
    Inventors: Yoshiyo Kubo, Osamu Nakajima, Kentarou Ogawa
  • Patent number: 8689586
    Abstract: A glass-melting device for producing glass fibers capable effectively reducing inclusion of bubbles into glass fibers to be spun, and a method for producing glass fibers using the same are provided. A glass-melting device 100 for producing glass fibers comprises: a first glass-melting tank 12; a conduit 14 extending downward from the first glass-melting tank 12; a sucking device 18 for exposing the first glass-melting tank 12 to a reduced-pressure atmosphere; a second glass-melting tank 20 provided on a lower portion of the conduit 14 and exposed to an atmospheric-pressure atmosphere; and a bushing 22 provided at a bottom portion of the second glass-melting tank 20 and equipped with a number of nozzles 22a.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: April 8, 2014
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Norio Hirayama, Naohiro Miyanaga, Masahiko Takahashi, Kentarou Ogawa
  • Patent number: 8689588
    Abstract: An object of the present invention is to effectively reduce mixing of bubbles into a spun glass fiber. A glass-melting device 10 for producing glass fibers includes; a first glass-melting tank 12 exposed to a reduced-pressure atmosphere; a second glass-melting tank 14 and a third glass-melting tank 16 arranged below the first glass-melting tank 12; an ascending conduit 18 that sends up molten glass resulting from melting in the second glass-melting tank 14 to deliver the molten glass to the first glass-melting tank 12; a descending conduit 20 that sends the molten glass down from the first glass-melting tank 12 to deliver the molten glass to the third glass-melting tank 16; a decompression housing 22; and a bushing 24. The glass-melting device 10 further includes heating means for separately heating the first glass-melting tank 12, the second glass-melting tank 14, the third glass-melting tank 16, the ascending conduit 18, the descending conduit 20 and the bushing 24.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: April 8, 2014
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Norio Hirayama, Masahiko Takahashi, Naohiro Miyanaga, Kentarou Ogawa
  • Publication number: 20120167633
    Abstract: A glass-melting device for producing glass fibers capable effectively reducing inclusion of bubbles into glass fibers to be spun, and a method for producing glass fibers using the same are provided. A glass-melting device 100 for producing glass fibers comprises: a first glass-melting tank 12; a conduit 14 extending downward from the first glass-melting tank 12; a sucking device 18 for exposing the first glass-melting tank 12 to a reduced-pressure atmosphere; a second glass-melting tank 20 provided on a lower portion of the conduit 14 and exposed to an atmospheric-pressure atmosphere; and a bushing 22 provided at a bottom portion of the second glass-melting tank 20 and equipped with a number of nozzles 22a.
    Type: Application
    Filed: March 8, 2010
    Publication date: July 5, 2012
    Inventors: Norio Hirayama, Naohiro Miyanaga, Masahiko Takahashi, Kentarou Ogawa
  • Publication number: 20120055200
    Abstract: An object of the present invention is to effectively reduce mixing of bubbles into a spun glass fiber. A glass-melting device 10 for producing glass fibers includes: a first glass-melting tank 12 exposed to a reduced-pressure atmosphere; a second glass-melting tank 14 and a third glass-melting tank 16 arranged below the first glass-melting tank 12; an ascending conduit 18 that sends up molten glass resulting from melting in the second glass-melting tank 14 to deliver the molten glass to the first glass-melting tank 12; a descending conduit 20 that sends the molten glass down from the first glass-melting tank 12 to deliver the molten glass to the third glass-melting tank 16; a decompression housing 22; and a bushing 24. The glass-melting device 10 further includes heating means for separately heating the first glass-melting tank 12, the second glass-melting tank 14, the third glass-melting tank 16, the ascending conduit 18, the descending conduit 20 and the bushing 24.
    Type: Application
    Filed: March 8, 2010
    Publication date: March 8, 2012
    Inventors: Norio Hirayama, Masahiko Takahashi, Naohiro Miyanaga, Kentarou Ogawa