MH

Masao Hirayama

OC Osaka Gas Co.: 2 patents #129 of 689Top 20%
TC Tokyo Gas Co.: 2 patents #79 of 412Top 20%
AC Ashimori Industry Co.: 1 patents #73 of 185Top 40%
AK Ashimori Kogyo Kabushiki Kaisha: 1 patents #16 of 51Top 35%
Overall (All Time): #1,294,404 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5310593 Adsorbent Soichiro Tsujimoto, Katsuya Kibata, Yoshinobu Otake, Harushi Okabe 1994-05-10
5308703 Adsorbent having good heat conductivity Soichiro Tsujimoto, Katsuya Kitaba, Yoshinobu Otake 1994-05-03
4350548 Method and apparatus for providing the inner surface of a pipe line with a lining Katsuaki Zenbayashi, Akio Morinaga, Akira Morita 1982-09-21
4334943 Method for smoothly evaginating a tubular material under pressure Katsuaki Zenbayashi, Akio Morinaga, Akira Morita 1982-06-15