Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D787035 | Propeller fan | Shingo Hamada, Katsumi Shibayama, Takashi Kitazumi, Hiroshi Yoshikawa, Hiroaki Makino +1 more | 2017-05-16 |
| D725251 | Propeller fan | Shingo Hamada, Hiroshi Yoshikawa, Katsumi Shibayama, Noriko Semii, Hiroaki Makino | 2015-03-24 |
| D725252 | Propeller fan | Shingo Hamada, Hiroshi Yoshikawa, Katsumi Shibayama, Noriko Semii, Hiroaki Makino | 2015-03-24 |