TH

Takeshi Hirayama

HI Hitachi: 2 patents #336 of 2,935Top 15%
Overall (1989): #15,119 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4855896 Collective wiring system and method of control thereof Shigeru Oho, Masahiro Matsumoto, Akira Hasegawa, Fumio Hamano, Takanori Shibata 1989-08-08
4837698 Method of controlling air-fuel ratio Matsuo Amano, Masami Shida, Masahide Sakamoto, Takao Sasayama 1989-06-06