Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5070274 | Method for making diamond and apparatus therefor | Masanori Yoshikawa, Haruo Tateno, Tsutomu Itoh, Hiroshi Saitoh, Masayuki Kitoh | 1991-12-03 |
| 4691869 | Apparatus for controlling the operation of a grinding system | Eiichi Onuma, Youji Kawamura, Takemi Aizawa, Motomi Tamai, Tsuguya Inagaki +1 more | 1987-09-08 |
| 4611765 | Roller mill | Katsuhiko Shimojima, Masaki Hamaguchi, Takemi Aizawa, Hiroyuki Ninomiya | 1986-09-16 |
| 4597537 | Vertical mill | Takaaki Misaka, Takeshi Furukawa, Eiichi Onuma, Kyosuke Fukuyama, Toshiyuki Tanaka +2 more | 1986-07-01 |