Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5793649 | Apparatus for measuring the operation of vehicular engines | Masao Iwata, Shunsuke Nakamura | 1998-08-11 |
| 5760574 | Engine revolution counter having mode setting terminals and a detachable body | Hiromi Watanabe | 1998-06-02 |
| 5617373 | Time totaling meter and unit of the same for internal combustion engine | Norio Kawai | 1997-04-01 |
| D366003 | Engine tachometer | Hiromi Watanabe, Atsuo Endo, Makoto Kakegawa | 1996-01-09 |
| 5269140 | Exhaust gas purifier for methanol-fueled engines | Masaji Kurosawa | 1993-12-14 |
| 5240428 | Working machine safety device | Hiroshi Nakata, Masao Iwata, Hiromi Watanabe, Yoshinori Ishikawa | 1993-08-31 |
| 5181232 | Diesel engine revolution counter | — | 1993-01-19 |
| D331026 | Engine tachometer | — | 1992-11-17 |
| D331028 | Engine tachometer | — | 1992-11-17 |
| 5158753 | Internal combustion engine exhaust gas purifying device and process | Masaji Kurosawa | 1992-10-27 |
| 4911227 | Heat exchange apparatus for effecting heat exchange in plurality of gases, heat exchange element for use in said apparatus and process for preparation of said heat exchange element | Naohide Saito, Junichi Tamura, Masaji Kurosawa, Isao Terada | 1990-03-27 |
| 4829579 | Apparatus for confirming and reporting the operating conditions of a chain saw or the like | Ryuzo Harada | 1989-05-09 |
| 4533581 | Highly heat-resistant disc roll | Hiroshi Asaumi, Masazumi Akase, Isao Terada | 1985-08-06 |
| 4416043 | Disc roll | Susumu Aoki, Hiroshi Asaumi, Masazumi Akase | 1983-11-22 |
| 4303553 | Neutron-protection heat insulating material | Susumu Aoki, Hirosi Asaumi, Junichi Miyakoshi, Hiroshi Takemoto, Kenta Kabayama | 1981-12-01 |