Inventor
Tokitake OKAHIRA
Inventor
JP
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Dprimary
F16DCouplings for transmitting rotation43%
B61HBrakes or other retarding devices specially adapted for rail vehicles29%
B22FWorking metallic powder14%
C22CAlloys14%
PatentTitleYear
11,674,206Sintered friction material for railway vehicles and method for producing the same202311,578,775Brake lining for railway vehicle, disc brake system for railway vehicle including same, and sintered friction material to be used for brake lining for railway vehicle202311,434,964Brake lining for a railway vehicle and disk brake equipped with the same2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2023Patents assigned to FINE SINTER CO LTD (3)· patent assignee history
2022–2023Patents assigned to NIPPON STEEL CORP (3)· patent assignee history
2022Patents assigned to NIPPON STEEL & SUMITOMO METAL CORP (1)· patent assignee history
2022–2023Based in JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FINE SINTER CO LTD | 3 | 2022–2023 |
| NIPPON STEEL CORP | 3 | 2022–2023 |
| NIPPON STEEL & SUMITOMO METAL CORP | 1 | 2022 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 3 | 2022–2023 |