Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12199302 | Pressure relief valve for battery pack | — | 2025-01-14 |
| 11155159 | Fuel tank valve apparatus | — | 2021-10-26 |
| 8453810 | Damper device | — | 2013-06-04 |
| 8177042 | Rotary damper | Ken Hayashi | 2012-05-15 |
| 8104592 | Damper device | — | 2012-01-31 |
| 7938238 | Rotary damper | Kazuyoshi Koizumi, Ken Hayashi, Yoshihisa Takei | 2011-05-10 |
| 7604100 | Rotary damper | Ken Hayashi | 2009-10-20 |
| 7424939 | Rotary damper | Ken Hayashi | 2008-09-16 |
| 7264096 | Rotary damper | Ken Hayashi | 2007-09-04 |
| 7207425 | Rotary damper | Ken Hayashi, Masanobu Kawamoto, Masayuki Nishiyama | 2007-04-24 |
| D540809 | Rotary damper | Ken Hayashi | 2007-04-17 |
| 6857675 | Damper unit and glove box device using the same | Katsuhito Kurachi, Ken Hayashi, Hiroyuki Hayashi, Mikihiro Amano | 2005-02-22 |