Keiichi Narita

5 Patents

• US125280742026

  Catalyst Material

  National University Corporation Tokai National Higher Education And Research System

  0 cites
• US124103742025

  Lubricating Oil Composition, Lubrication Method, and Transmission

  IDEMITSU KOSAN CO., Ltd.

  0 cites
• US123038732025

  Exhaust Gas Purification Catalyst

  Cataler Corporation

  0 cites
• US122759102025

  Lubricating Oil Composition

  IDEMITSU KOSAN CO., Ltd.

  0 cites
• US119460132024

  Lubricant Composition

  Idemitsu Kosan Co., Ltd.

  0 cites