Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6564609 | Equalizing fluid-operated apparatus and method of assembling the apparatus | Masayoshi Amano, Shinji Kawamura, Sigehiro Kirii | 2003-05-20 |
| 5735201 | Apparatus including mutually communicating hydraulic cylinders for even distribution of blank-holding force on pressing machine | Norihisa Hirao, Munetaka Toda | 1998-04-07 |
| 5724843 | Method of diagnosing pressing machine based on detected physical value as compared with reference | Masahiro Shinabe | 1998-03-10 |
| 5701778 | Press having gas cylinders of plastically deformable members for even distribution of blank-holding force on pressure member through cushion pins | — | 1997-12-30 |
| 5692404 | Method of diagnosing pressing machine based on detected physical value as compared with reference | Masahiro Shinabe | 1997-12-02 |
| 5692405 | Method and apparatus for optimizing press operating condition based on press operating environment and/or physical condition of blank | — | 1997-12-02 |
| 5687598 | Press having cushioning cylinders each having two chambers whose pressure difference is adjustable to control blank-holding force | Norihisa Hirao | 1997-11-18 |
| 5623848 | Pressing method and system wherein cushion platen is lowered by cooperation of shock absorbers and cylinders before holding of blank between die and pressure ring | — | 1997-04-29 |
| 5540073 | Method and apparatus for adjusting press operating conditions depending upon dies used | — | 1996-07-30 |
| 5528918 | Method and apparatus for adjusting pressure of cushioning pneumatic cylinder on press when cushion platen is at setup position | — | 1996-06-25 |
| 5471861 | Method and apparatus for diagnosing press cushioning device, on optimum range of blank-holding force | — | 1995-12-05 |
| 5457980 | Method and device for controlling, checking or optimizing pressure of cushion pin cylinders of press by discharging fluid or initial pressure | Masahiro Shinabe, Shigehiro Kirii | 1995-10-17 |
| 5450756 | Device and method for measuring and adjusting pressing load values on a press | Masahiro Shinabe | 1995-09-19 |
| 5419169 | Method and apparatus for adjusting press operating conditions depending upon dies used | — | 1995-05-30 |
| 5361615 | Apparatus for measuring blank holding force acting on pressure ring of a press | Masahiro Shinabe, Tsutomu Ono, Masuo Watanabe, Hideo Koshida | 1994-11-08 |
| 5299444 | Hydraulic cushioning system for press, having hydraulic power supply including means for adjusting initial pressure to be applied to pressure-pin cylinders | Tsutomu Ono, Masahiro Shinabe | 1994-04-05 |
| 5295383 | Hydraulic cushioning system for press, having shut-off valve for disconnection of pressure-pin cylinders from power supply upon contact of movable die with workpiece | Tsutomu Ono, Seiki Minami | 1994-03-22 |
| 4698991 | Method of and apparatus for controlling forming press conditions | Mamoru Toyoda, Masatoki Utsumi, Akio Asai | 1987-10-13 |
| 4667496 | Apparatus for controlling dynamic characteristics of outer load | Akio Asai, Kazuki Watanabe, Ryoji Yoshinaka | 1987-05-26 |
| 4599887 | Apparatus for controlling dynamic characteristics of press load | Akio Asai, Yukito Ando | 1986-07-15 |