Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5199858 | Oil injection type screw compressor | Noboru Tsuboi, Masaki Matsukuma, Kazuo Kubo, Tsuyoshi Niimura, Atsushi Ikeda | 1993-04-06 |
| 5176505 | Oil-cooled compressor | Tsutomu Horii, Kazuo Kubo, Masaki Matsukuma | 1993-01-05 |
| 5171130 | Oil-cooled compressor and method of operating same | Kazuo Kubo, Masaki Matsukuma, Tsutomu Horii, Yoshitomo Yamamoto | 1992-12-15 |