Patents by Inventor Tokio Oi

Tokio Oi 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).

  • Process for producing activated carbon
    Patent number: 7897540
    Abstract: A process for producing an activated carbon includes the step of adsorbing an organic compound onto an activated carbon comprising pores which exhibit a wide pore diameter distribution, thereby selectively closing smaller pores which have a small pore diameter. In accordance with the production process, it is possible to produce activated carbons which are good in terms of the adsorption-desorption characteristic.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: March 1, 2011
    Assignee: Cataler Corporation
    Inventors: Tokio Oi, Hirokazu Aono, Takayuki Suzuki, Yuji Mochizuki
  • Absorbent and Canister
    Publication number: 20100107581
    Abstract: An adsorbent having an excellent VOC-retaining ability is achieved. A adsorbent for a canister includes an activated carbon and a hydrophobic substance supported on the activated carbon, wherein the adsorbent has a butane working capacity that is greater than or equal to 9.0 g/100 mL, a butane retentivity that is lesser than or equal to 1.5 g/100 mL, and a pore volume that is lesser than or equal to 0.25 mL/mL.
    Type: Application
    Filed: January 7, 2010
    Publication date: May 6, 2010
    Applicant: CATALER CORPORATION
    Inventors: Yuji MOCHIZUKI, Takayuki SUZUKI, Tokio OI
  • Activated carbon and canister
    Publication number: 20050014642
    Abstract: This invention provides activated carbon having excellent adsorption and desorption properties and a canister using such activated carbon. An organic substance is adsorbed on a base activated carbon having pores with a wide range of diameter to selectively occlude pores with small diameters. As the pores with small diameters are occluded, the activated carbon has excellent adsorption and desorption properties. A canister using this activated carbon has a decreased leakage of an adsorbate.
    Type: Application
    Filed: July 15, 2004
    Publication date: January 20, 2005
    Applicants: CATALER CORPORATION, AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Tokio Oi, Hirokazu Aono, Yuji Hayakawa, Hideo Yamada, Takashi Kato
  • Adsorbent for adsorbing fuel vapors
    Patent number: 6793718
    Abstract: An adsorbent for adsorbing fuel vapors is disclosed. The adsorbent is to be disposed in an inlet system of an internal combustion engine. It has pores, and 50% by volume or more of the pores have a pore diameter falling in a range of from 1.4 to 2.8 nm. It exhibits a unit pore volume of 0.3 mL or more with respect to 1 mL thereof. It is formed as a particle. It exhibits high performance on adsorbing fuel vapors, and shows high durability even when it is used for long period of time.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: September 21, 2004
    Assignees: Cataler Corporation, Toyota Jidosha Kabushiki Kaisha, Toyoda Boshoku Corporation
    Inventors: Yuji Mochizuki, Tokio Oi, Takashi Nishimoto, Shinsuke Kiyomiya, Kouichi Oda
  • Internal combustion engine air cleaner and adsorption filter
    Patent number: 6692555
    Abstract: A sheet-like adsorption filter formed by sandwiching particulate activated carbon with heat-resistant nets and non-woven fabric sheets that have a percentage of void of 90% or higher, is disposed at an internal combustion engine side of a filter element.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: February 17, 2004
    Assignees: Toyoda Boshoku Corporation, Nippon Soken, Inc., Toyota Jidosha Kabushiki Kaisha, Cataler Corporation
    Inventors: Kouichi Oda, Minoru Honda, Yoshinori Inuzuka, Masaki Takeyama, Takashi Nishimoto, Yuji Mochizuki, Tokio Oi
  • Adsorbent for adsorbing fuel vapors
    Publication number: 20030196553
    Abstract: An adsorbent for adsorbing fuel vapors is disclosed. The adsorbent is to be disposed in an inlet system of an internal combustion engine. It has pores, and 50% by volume or more of the pores have a pore diameter falling in a range of from 1.4 to 2.8 nm. It exhibits a unit pore volume of 0.3 mL or more with respect to 1 mL thereof. It is formed as a particle. It exhibits high performance on adsorbing fuel vapors, and shows high durability even when it is used for long period of time.
    Type: Application
    Filed: April 4, 2003
    Publication date: October 23, 2003
    Applicants: CATALER CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYODA BOSHOKU CORPORATION
    Inventors: Yuji Mochizuki, Tokio Oi, Takashi Nishimoto, Shinsuke Kiyomiya, Kouichi Oda
  • Internal combustion engine air cleaner and adsorption filter
    Publication number: 20020129711
    Abstract: A sheet-like adsorption filter formed by sandwiching particulate activated carbon with heat-resistant nets and non-woven fabric sheets that have a percentage of void of 90% or higher, is disposed at an internal combustion engine side of a filter element.
    Type: Application
    Filed: March 13, 2002
    Publication date: September 19, 2002
    Applicant: TOYODA BOSHOKU CORPORATION
    Inventors: Kouichi Oda, Minoru Honda, Yoshinori Inuzuka, Masaki Takeyama, Takashi Nishimoto, Yuji Mochizuki, Tokio Oi