Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811689 | Electrostatic powder coating apparatus | Masahiro Yamamoto, Mituyosi Kumata, Katutoshi Kozoe | 1989-03-14 |
| 4805069 | Powder charging apparatus and electrostatic powder painting apparatus | Hideo Nagasaka, Masahiro Yamamoto, Tadao Morita, Hiroshi Saitoh | 1989-02-14 |