IS

Isao Souma

TS Tokyo Kikai Seisakusho: 1 patents #91 of 195Top 50%
MI Ministry Of International Trade & Industry: 1 patents #189 of 582Top 35%
NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
AT Agency Of Industrial Science And Technology: 1 patents #568 of 1,778Top 35%
📍 Kazo, JP: #44 of 138 inventorsTop 35%
Overall (All Time): #1,278,521 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6019307 Paper pasting device 2000-02-01
5306563 High-performance C/C composite Hiroshi Shioyama, Kuniaki Tatsumi, Masaki Narisawa 1994-04-26
5215689 Method for production of high-performance C/C composites Hiroshi Shioyama, Kuniaki Tatsumi, Masaki Narisawa 1993-06-01
4902473 Rotary brake disc Hiroto Arata, Kenji Shiga, Daihachiro Sakurai, Kazuo Fujisawa, Yusiyo Watanabe +1 more 1990-02-20