AI

Akihiko Ishiyama

HI Hitachi: 6 patents #6,582 of 28,497Top 25%
📍 Tochigi, JP: #625 of 2,789 inventorsTop 25%
Overall (All Time): #877,272 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6905318 Compressor including tapered discharged valve and valve seat Takeshi Kouno, Hirokatsu Kohsokabe, Isao Hayase, Kenichi Oshima 2005-06-14
5591023 Rotary type compressor Hideki Nakamura, Keiji Yamasaki, Fujio Yamane, Toshiki Yoshida, Tadashi Iizuka 1997-01-07
5540061 Refrigerator Masahiko Gommori, Katsutoshi Shinohara, Takahiro Kaneko, Hiroaki Hata 1996-07-30
5494423 Rotary compressor and blade tip structure Ken'ichi Kawashima, Hirokatsu Kohsokabe, Shoichi Nakashima, Hideki Yazawa, Hiroaki Hata +3 more 1996-02-27
5423664 Iron-base alloy for rotary type compressors Tadashi Iizuka, Kazushi Fukuda, Hideki Yazawa, Shoichi Nakashima, Hideki Nakamura 1995-06-13
4726738 Motor-driven compressor provided with torque control device Yozo Nakamura, Naoyuki Tanaka, Shigeru Machida, Akira Arai, Yoshihisa Uneyama +4 more 1988-02-23