Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6955758 | Ozone treating apparatus | Kazutoshi Yamazaki, Kozo Shirato, Kazuyasu Kawashima, Akira Sato | 2005-10-18 |
| 6755899 | Vacuum deaeration device | — | 2004-06-29 |
| 4752129 | Wavelength modulation derivative spectrometer | Takusuke Izumi, Seiji Kanai, Tsuneo Suzuki | 1988-06-21 |
| 4629561 | Liquid chromatograph with flow controller | Kozo Shirato, Kazuo Hiraizumi, Akio Kaneko | 1986-12-16 |