Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6689507 | Battery and equipment or device having the battery as part of structure and locally distributed power generation method and power generation device therefor | Kazuo Tsutsumi, Chikanori Kumagai, Mitsuharu Kishimoto, Atsushi Tsutsumi | 2004-02-10 |
| 5244746 | Composite structures | Shigetomo Matsui, Hiroyuki Matsumura, Takeshi Yamada, Yasuhiro Kumon, Makoto Ryoji +8 more | 1993-09-14 |
| 5121537 | Method of production of anchor-bonded composite structures | Shigetomo Matsui, Takeshi Yamada, Yasuhiro Kumon, Makoto Ryoji, Toshihiko Ishizuka +2 more | 1992-06-16 |
| 4774912 | Composite cylinder head of internal-combustion engine | Hideaki Nakano, Yoichi Nakamura, Tadahiro Ozu, Takeshi Yamada | 1988-10-04 |
| 4727641 | Thermoplastic method of reducing the diameter of a metal tube | Fumiyoshi Kanatani, Shigetomo Matsui, Takeshi Yamada, Eisuke Mori, Toshiaki Araki | 1988-03-01 |
| 4699309 | Method of bonding dissimilar materials | Takeshi Yamada | 1987-10-13 |
| 4667543 | Method of manufacturing a rock bit cone | Shoichiro Tsugaki, Tomoo Miyasaka, Yukio Nishiyama | 1987-05-26 |
| 4600219 | Corrosion-resistant pipe coupling structures | Toshio Yoshida, Kouyu Itoga, Shigetomo Matsui | 1986-07-15 |
| 4542846 | Method of producing a multiple-wall pipe structure with anticorrosion end protection | Shigetomo Matsui, Shouji Toma | 1985-09-24 |
| 4509776 | Corrosion-resistant pipe coupling structures | Toshio Yoshida, Kouyu Itoga, Shigetomo Matsui | 1985-04-09 |
| 4491001 | Apparatus for processing welded joint parts of pipes | Toshio Yoshida | 1985-01-01 |
| 4449281 | Method of producing multiple-wall, composite tubular structures | Toshio Yoshida, Shigetomo Matsui | 1984-05-22 |