Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11360436 | Water resistant watch | Koki Hayashi | 2022-06-14 |
| 6776586 | Multi-stage vacuum pump | Kazuo Noso, Kazuaki Nakamura | 2004-08-17 |
| 6699023 | Multi-stage vacuum pump | Kazuo Noso | 2004-03-02 |
| 6471494 | Vacuum pumping apparatus | Atsuyuki Miura, Koichi Nakayama, Toyoki Furuhashi | 2002-10-29 |
| 6305910 | Multi-stage pump device | Atsuyuki Miura, Noboru Ohtani, Koichi Nakayama | 2001-10-23 |
| 6196810 | Multistage vacuum pump assembly | Hiroya Taniguchi | 2001-03-06 |
| 5328658 | Method of refining chromium-containing steel | Osamu Egawa, Hitoshi Sakuma | 1994-07-12 |
| 5203170 | Stirling engine generating system | — | 1993-04-20 |
| 5174117 | Free piston Stirling engine | Takanori Hamajima, Yoshihiro Naruse | 1992-12-29 |
| 4881372 | Stirling engine | — | 1989-11-21 |
| 4795524 | Apparatus for fixing cap on end of filter element | Atsushi Sakaida, Masanori Suzuki | 1989-01-03 |
| 4706457 | Apparatus for controlling working gas pressure in stirling engines | Masaru Tsunekawa, Masaya Hyodo, Tatsuya Hayashi | 1987-11-17 |
| 4677824 | Output control apparatus for Stirling engines | Masahiko Hasegawa, Masaru Tsunekawa, Yutaka Momose | 1987-07-07 |
| 4652540 | Catalyst for olefin polymerization and process for producing same | Tsutomu Takahashi, Tetsuya Matsukawa, Akihiro Sato | 1987-03-24 |
| 4483142 | Output control system for Stirling engines | Masura Tsunekawa | 1984-11-20 |