Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5862539 | Water saving device for flush toilets | — | 1999-01-26 |
| 5746415 | Water saving device for use in water lines | — | 1998-05-05 |
| 5349929 | Valve controller for controlling the suction valve of an internal-combustion engine | Yoshihiro Fujiyoshi | 1994-09-27 |
| 5333983 | Rack arrangement | Gokichi Hatouchi, Hisao Saitoh, Yasushi Hagisu | 1994-08-02 |
| 5259357 | Ignition system for internal combustion engine | Hidezou Umiyama, Kazuya Iwamoto | 1993-11-09 |
| D323450 | Knive sharpener | — | 1992-01-28 |
| D309414 | Knife sharpener | — | 1990-07-24 |
| D309415 | Knife sharpener | — | 1990-07-24 |
| 4842984 | Water soluble photosensitive resin compositions with bisazide compound | Hajime Serizawa, Koichi Ojima | 1989-06-27 |
| 4778725 | Functional polymers derived from polyamines and process for producing the same | Hajime Serizawa, Koichi Ojima, Keizo Ogihara | 1988-10-18 |
| 4749759 | Process for the preparation of polymers of inorganic acid salts of monoallylamine or N-substituted monoallylamines | Susumu Harada | 1988-06-07 |
| 4701497 | Process for producing novel photosensitive resins | Hajime Serizawa, Keizo Ogihara, Susumu Harada | 1987-10-20 |
| 4687817 | Novel functionalized resin derived from polyallylamine | Susumu Harada, Masayuki Ujiie | 1987-08-18 |
| 4670517 | Novel isonitrile group-containing polymers and process for preparing the same | Tadao Endo, Susumu Harada | 1987-06-02 |
| 4644042 | Polymers of N-substituted secondary monoallylamines and their salts and process for producing the same | Toshio Ueda, Kenji Kageno, Sakuro Hasegawa, Susumu Harada | 1987-02-17 |
| 4604451 | Novel functionalized resin derived from polyallylamine | Susumu Harada, Masayuki Ujiie | 1986-08-05 |
| 4594409 | Producing sequential polyamino acid resin | Ikuo Hayashi, Tadao Itikawa | 1986-06-10 |
| 4559172 | Process for acylation with novel acylating agent | Ikuo Hayashi, Keizo Ogihara, Tadao Itikawa | 1985-12-17 |
| 4540760 | Process for producing polymers of monoallylamine | Susumu Harada, Hajime Serizawa | 1985-09-10 |
| 4528347 | Process for producing polymers of monoallylamine | Susumu Harada | 1985-07-09 |
| 4525576 | Process for producing sequential polyamino acid resin | Ikuo Hayashi, Tadao Itikawa, Keizo Ogihara | 1985-06-25 |