Patents by Inventor Yoshiharu HATA

Yoshiharu HATA 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).

  • Heat sink and heat exchanger
    Patent number: 11935815
    Abstract: A coolant passageway (2) of a heat sink (1) has a coolant lead-in part (21), a coolant lead-out part (22), coolant-contact parts (23), coolant-transit parts (25), and connecting parts (24). The coolant-contact parts (23) are disposed spaced apart from one another along a coolant path leading from the coolant lead-in part (21) to the coolant lead-out part (22) and are configured such that they bring the coolant into contact with a cooling-wall part. The coolant-transit parts (25) are disposed between adjacent coolant-contact parts (23) and are configured such that the coolant can transit from upstream-side coolant-contact parts (23) to downstream-side coolant-contact parts (23) in the coolant paths. The connecting parts (24) are interposed between the coolant-transit parts (25) and the coolant-contact parts (23) and have a passageway cross-sectional area that is smaller than those of the coolant-contact parts (23) and the coolant-transit parts (25).
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: March 19, 2024
    Assignee: UACJ CORPORATION
    Inventors: Yoshiharu Sakai, Tetsuro Hata, Gaku Torikai
  • Engine cleaning composition
    Patent number: 9353340
    Abstract: This invention provides an engine cleaning composition for removing sediment formed in an engine. Such engine cleaning composition comprises: a dispersant containing a carboxylic acid and an amine; a chelating agent; a glycol solvent; and a naphthenic oil.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: May 31, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hidetoshi Kawai, Yoshiharu Hata, Takeo Sakurai, Hiroyuki Nishiura, Masayuki Ichiyanagi, Reika Ogawa, Shigehiko Sato, Masaaki Matsunaga
  • ENGINE CLEANING COMPOSITION
    Publication number: 20150259631
    Abstract: This invention provides an engine cleaning composition for removing sediment formed in an engine. Such engine cleaning composition comprises: a dispersant containing a carboxylic acid and an amine; a chelating agent; a glycol solvent; and a naphthenic oil.
    Type: Application
    Filed: September 26, 2013
    Publication date: September 17, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hidetoshi KAWAI, Yoshiharu HATA, Takeo SAKURAI, Hiroyuki NISHIURA, Masayuki ICHIYANAGI, Reika OGAWA, Shigehiko SATO, Masaaki MATSUNAGA