Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5603882 | Piercing method and apparatus | Hiroki Fujitani, Takehiro Koga | 1997-02-18 |
| 4353727 | Method for fabricating fluorescent lamp | Etsuo Urataki, Yoshinobu Tomita, Mitsuru Nakagawa | 1982-10-12 |