Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5007267 | Method and apparatus for manufacturing bellows pipe | Mitsumasa Ohtaka | 1991-04-16 |
| 4997216 | Connector for connecting small diameter pipe | — | 1991-03-05 |
| 4964658 | Small-size piping coupling joint | Masayoshi Usui, Kazunori Takikawa | 1990-10-23 |
| 4946205 | Connector for connecting small diameter pipe | — | 1990-08-07 |
| 4944537 | Small-diameter pipe connector | Masayoshi Usui | 1990-07-31 |
| 4915420 | Connector for connecting pipe | — | 1990-04-10 |
| 4913467 | Connector for connecting small diameter pipe | — | 1990-04-03 |
| 4902048 | Joint structure for jointing metal pipes at their ends | — | 1990-02-20 |
| 4895396 | Connector for connecting small diameter pipe | — | 1990-01-23 |
| 4800109 | Flexible composite hose | — | 1989-01-24 |
| 4795114 | Stationary clamping device | Masayoshi Usui | 1989-01-03 |
| 4776616 | Coupling | Kazumasa Umehara, Kazunori Takigawa | 1988-10-11 |
| 4775170 | Hose coupling assembly | Masayoshi Usui, Kazunori Takigawa | 1988-10-04 |
| 4730856 | Pipe joint for connecting a pipe having a small diameter | — | 1988-03-15 |