Issued Patents All Time
Showing 51–75 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4767245 | Annular hole cutter | Michihiro Shoji | 1988-08-30 |
| D295140 | Portable chamfering tool | Kenji Fukuda | 1988-04-12 |
| 4733692 | Tube coupling | Naoyuki Kotake | 1988-03-29 |
| D293073 | Multi-needle type chisel | Naoya Kurihara | 1987-12-08 |
| D292368 | Multi-needle type chisel | — | 1987-10-20 |
| 4681172 | Cushioning device for use with a pneumatic impact tool or the like | Minoru Kaneko, Yasuo Kazama | 1987-07-21 |
| 4653471 | Solar heat collector | Hirosato Takeuchi | 1987-03-31 |
| 4649903 | Solar heat collector | Hirosato Takeuchi | 1987-03-17 |
| 4632190 | Pneumatically-operated multi-needle chisel tool | — | 1986-12-30 |
| 4624608 | Pilot pin-locking device in drilling machines | Iwaji Shiomi | 1986-11-25 |
| 4615329 | Solar heat collector arrangement | Hirosato Takeuchi, Katsunobu Kishi | 1986-10-07 |
| 4604006 | Drilling machine having electromagnetic base | Mitihiro Shoji | 1986-08-05 |
| 4601350 | Electrically-operated multi-needle chisel tool | — | 1986-07-22 |
| 4596240 | Instruments for recovering functions of carpal joint, hand and fingers | Shiro Takahashi | 1986-06-24 |
| 4583255 | Massage arrangement of the pneumatic type | Tadahisa Mogaki, Mitsuma Matsumura, Nobuyuki Nozawa, Katsuji Kikuchi, Haruki Nakao | 1986-04-22 |
| 4577626 | Massager | Toshio Marukawa, Haruki Nakao | 1986-03-25 |
| 4566431 | Spontaneous circulation type solar heat collector | Hirosato Takeuchi | 1986-01-28 |
| 4563603 | Holder arrangement for the reciprocating rod of electromagnetic reciprocator device | — | 1986-01-07 |
| 4559577 | Drilling machine | Michihiro Shoji | 1985-12-17 |
| 4551874 | Pneumatic massage mat | Mitsuma Matsumura, Tadahisa Mogaki | 1985-11-12 |
| D280234 | Solar energy collector or the like | Hirosato Takeuchi | 1985-08-20 |
| 4508104 | Retaining device for an inner tube of an evacuated double-tubing type solar heat collector | Hirosato Takeuchi | 1985-04-02 |
| 4498658 | Pipe coupler arrangement | — | 1985-02-12 |
| 4456410 | Stabilization device for the stand of a drilling machine | Mitihiro Shoji, Tadao Tanoi | 1984-06-26 |
| 4442828 | Portable type solar heat cooker assembly | Hirosato Takeuchi | 1984-04-17 |