Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D993453 | Office booth | Yuichi Ishihara | 2023-07-25 |
| 11019928 | Armrest and chair | Yuuichirou Takagi, Hiroshi Masunaga, Ryo Igarashi | 2021-06-01 |
| 11019930 | Load support structure for chair, load support body for chair, and chair | Hiroshi Masunaga | 2021-06-01 |
| 10932575 | Armrest and chair | Hiroshi Masunaga, Ryo Igarashi | 2021-03-02 |
| D907422 | Chair | — | 2021-01-12 |
| D895313 | Chair | — | 2020-09-08 |
| D887193 | Chair | — | 2020-06-16 |
| D886501 | Chair | — | 2020-06-09 |
| D885103 | Chair | — | 2020-05-26 |
| D882971 | Chair | — | 2020-05-05 |
| D860669 | Chair | — | 2019-09-24 |
| 10334953 | Furniture, load support member for chair, and chair | Hiroshi Masunaga, Yoshinori Isogai, Kouichirou Wakizono, Naoyuki Okuda | 2019-07-02 |
| D829031 | Chair | — | 2018-09-25 |
| D794365 | Chair | — | 2017-08-15 |
| D781092 | Chair | — | 2017-03-14 |
| 9578968 | Chair | Hiroshi Masunaga, Ryo Igarashi | 2017-02-28 |
| D751836 | Chair | — | 2016-03-22 |
| D751835 | Chair | — | 2016-03-22 |
| D734971 | Chair | — | 2015-07-28 |
| D733445 | Chair | Ryou Igarashi | 2015-07-07 |
| D733446 | Chair | Ryou Igarashi | 2015-07-07 |
| 8991932 | Backrest mechanism for chair | Naoyuki Okuda | 2015-03-31 |
| D671331 | Chair | — | 2012-11-27 |
| D671332 | Chair | — | 2012-11-27 |
| D671330 | Chair | — | 2012-11-27 |