| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 24 | |
| #2 | China | 12 | |
| #3 | EPO (European Patent Office) | 11 | |
| #4 | WIPO (World Intellectual Property Organization) | 10 | |
| #5 | Hong Kong | 2 | |
| #6 | Taiwan | 2 | |
| #7 | Canada | 1 | |
| #8 | Republic of Korea | 1 |
| # | Name | Total Patents |
|---|---|---|
| #1 | Murakami Yasunori | 14 |
| #2 | Tanaka Akira | 12 |
| #3 | Hirayama Shinichi | 11 |
| #4 | Matsushita Yoshitaka | 11 |
| #5 | Hamada Yoshiaki | 11 |
| #6 | Abe Tsunehiko | 9 |
| #7 | Akiyoshi Koji | 9 |
| #8 | Tabata Masamune | 9 |
| #9 | Hoshi Masamichi | 8 |
| #10 | Mitsuyama Naomichi | 7 |
| Publication | Filing date | Title |
|---|---|---|
| US2007290452A1 | Metal gasket for cylinder head | |
| WO2004083690A1 | Metal gasket for cylinder head | |
| EP1541907A1 | Gasket material | |
| EP1557595A1 | Gasket material | |
| US5161809A | Metal gasket | |
| US5032430A | Method of producing a metal gasket | |
| US5130203A | Metal gasket and method of producing the same | |
| US4968045A | Metal gasket | |
| US4765634A | Metal gasket for a cylinder head on an internal combustion engine |