Issued Patents All Time
Showing 51–56 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4690867 | Material for low melting point metal casting equipment | Tsutomu Yamamoto, Michio Nishiyama, Masakazu Ozaki | 1987-09-01 |
| 4593722 | Sealant for internally sealing pipeline | Namio Kinumoto, Toshinori Tsuji, Tutomu Hiraoka | 1986-06-10 |
| 4554178 | Method of internally coating pipeline | Namio Kinumoto, Toshinori Tsuji, Tutomu Hiraoka | 1985-11-19 |
| 4419163 | Pipeline coating method | Takeo Namazugoshi, Hiroyoshi Seto | 1983-12-06 |
| 4334931 | Method for producing asbestos free machinable calcium silicate high heat-resistant material | Hiroshi Asaumi, Kazuo Kubota, Hisanori Yokoo | 1982-06-15 |
| 4325772 | Method of internally lining an installed pipe | Tetsui Suetoshi, Munetaka Kinugasa, Koichi Hosoya | 1982-04-20 |