Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841267 | Deflection apparatus for cathode ray tube | Isao Yokoyama, Tsutomu Maeda, Koichi Shibuya, Sumio Takahashi | 1989-06-20 |
| 4818618 | Aluminum material coated with fluorine resin | Hiroshi Okazaki, Fumio Matsuyama | 1989-04-04 |
| 4714908 | Electromagnetic deflection-distortion corrector | Isao Yokoyama, Masanori Sasaki, Yotaro Toyoshima, Sumio Takahashi, Tsutomu Maeda | 1987-12-22 |
| 4272351 | Apparatus for electrolytic etching | Yasutoyo Kotani, Kazuo Sawada, Shuzo Nagai, Takao Ogino | 1981-06-09 |
| 4230758 | Fluorine resin coated structure of aluminum or aluminum alloy | Shuzo Nagai, Takao Ogino, Koichi Okita | 1980-10-28 |
| 4220508 | Process for electrolytic etching | Yasutoyo Kotani, Kazuo Sawada, Shuzo Nagai, Takao Ogino | 1980-09-02 |