Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11959480 | Rotary compressor including a plurality of recessed portions for retaining lubricating oil | Hiroki Katayama | 2024-04-16 |
| 11933302 | Rotary compressor | Hideto Uchikai, Hiroki Katayama, Takahiro Sasaki | 2024-03-19 |
| 10738779 | Rotary compressor | Hiroki Katayama, Naoya Morozumi, Yasuyuki IZUMI, Taku Morishita | 2020-08-11 |
| 10550843 | Rotary compressor | Junya Tanaka, Taku Morishita, Naoya Morozumi | 2020-02-04 |
| 10519953 | Rotary compressor | Taku Morishita, Hiroki Katayama, Koji UKAI, Naoto TADA | 2019-12-31 |
| 10458408 | Rotary compressor having communication path hole overlap with discharge chamber concave portion | Naoya Morozumi, Taku Morishita, Hiroki Katayama, Junya Tanaka | 2019-10-29 |
| 9951775 | Rotary compressor | Hiroki Katayama, Taku Morishita, Naoya Morozumi | 2018-04-24 |
| 6276149 | Air conditioner | Masashi Katayama, Makoto Araki, Masaki Fujino, Jyunya Tanaka, Akira Shimada +5 more | 2001-08-21 |
| 6202428 | Air conditioner | Masashi Katayama, Makoto Araki, Masaki Fujino, Jyunya Tanaka, Akira Shimada +5 more | 2001-03-20 |