Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349258 | Manual focal point adjusting and change-over device for use in automatic focal point adjuster camera | Kiyoshi Kitai, Tadashi Nakagawa, Hiroaki Ishida, Masanori Watanabe, Yuzuru Takazawa | 1982-09-14 |
| 4331280 | Method of jointing pipes by friction welding | Takao Terabayashi, Kenichi Waragai, Atsuya Kamada, Izumi Ochiai, Yoiti Wakabayashi | 1982-05-25 |