Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6741939 | Calculation method of discharge and transfer amount of chemical substances and server and system therefor | Masatoshi Takano, Masahiro Higuchi, Takuro Kodama, Eiji Ishida | 2004-05-25 |
| 4314181 | Arc discharge lamp starting device | Kenichi Kawasumi | 1982-02-02 |