Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4755309 | Cold working lubricant for metallic conduits | Takeshi Kobori, Shigeki Kimura, Tadashi Ito, Mituru Uemura, Shigeharu Nakamura +2 more | 1988-07-05 |
| 4233108 | Process for use in etching the outer surface of a metal member | Yukio Yasuhara, Shigeharu Nakamura, Masaru Sakai, Kazuo Akagi, Ryohei Kazihata +1 more | 1980-11-11 |