Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11837429 | Blanking aperture array unit | — | 2023-12-05 |
| 10256070 | Stage mechanism | Hiroshi Matsumoto | 2019-04-09 |
| 7219699 | Resin-coated steel pipe excellent in mechanical strength such as sliding property | — | 2007-05-22 |
| 7105216 | Conductive resin coated steel pipe and extrusion molding method for the steel pipe | — | 2006-09-12 |
| 5916319 | Method to cold-bend resin-coated ribbed steel pipes | — | 1999-06-29 |
| 5812358 | Sheathed steel pipe with conductive plastic resin | Hisaji Kawai | 1998-09-22 |
| 5685442 | Package containers rack frame | Seiji Hirano, Yukio Shimizu | 1997-11-11 |
| D381257 | Joint for the frame of a rolling cart | Seiji Hirano | 1997-07-22 |
| 5586639 | Powered roller conveyer for light loads | — | 1996-12-24 |
| D376458 | Structural pipe | Seiji Hirano | 1996-12-10 |
| D375599 | Structural pipe | Seiji Hirano | 1996-11-12 |
| D375600 | Structural pipe | Seiji Hirano | 1996-11-12 |
| D373720 | Hinge joint for frame of rollable cart | Seiji Hirano | 1996-09-17 |
| 5512104 | Method to separate and recover resin and steel pipe from resin-coated steel pipe | Toshitsugu Mizushiri, Mamoru Yokota, Norimichi Nakamura, Ken Ota, Noboru Inoue | 1996-04-30 |