Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D397497 | Gas lighter | — | 1998-08-25 |
| 5640948 | Safety device for use with portable heater | Tomio Nitta, Hideo Mifune, Masato Seki, Noriyuki Serizawa | 1997-06-24 |
| 5598833 | Safety device for use with portable heater | Tomio Nitta, Hideo Mifune, Masato Seki, Noriyuki Serizawa | 1997-02-04 |
| 5568805 | Safety device for use with portable heater | Tomio Nitta, Hideo Mifune, Masato Seki, Noriyuki Serizawa | 1996-10-29 |
| D369509 | Portable cooking stove | Katsuyoshi Okuda | 1996-05-07 |
| 5462044 | Safety device for use with portable heater | Tomio Nitta, Hideo Mifune, Masato Seki, Noriyuki Serizawa | 1995-10-31 |
| D360557 | Igniter | Katsumi Ono | 1995-07-25 |
| 5408987 | Portable heater | Hideo Mifune, Tomio Nitta, Masato Seki, Shinichi Okawa, Noriyuki Serizawa +2 more | 1995-04-25 |
| 5240408 | Gas lighter with safety device | Kenjiro Uematsu, Masaki Saito | 1993-08-31 |
| 5186618 | Gas lighter with safety device | Tsutomu Shike, Toshihiko Eguchi, Kazuhiko Suganuma | 1993-02-16 |