Inventor
Katsuhisa Tonooka
Inventor
Kanagawa, JP
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Cprimary
F16CShafts33%
B24BMachines, devices, or processes for grinding or polishing28%
Y10TTechnical subjects covered by former us classification17%
B08BCleaning in general11%
B23PMetal-working not otherwise provided for6%
H01HElectric switches6%
PatentTitleYear
7,144,460'Ball/roller bearing cleaning method and apparatus thereof'20066,694,991'Ball/roller bearing cleaning apparatus'20046,332,265'Rolling bearing manufacturing apparatus and method'20016,223,635'Method of forming annular grooves in a ball polishing apparatus'20016,110,023'Sphere grinding apparatus'20005,921,851'Sphere polisher'19995,913,717'Sphere polishing machine'19995,906,535'Ball polishing method and apparatus, and annular groove forming method'19995,034,580'Collision sensor'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991Patents assigned to NIPPON SEIKO KK (1)· patent assignee history
1991Based in Fujisawa, JP· patent location history
1999–2006Patents assigned to NSK LTD (8)· patent assignee history
1999–2006Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NSK LTD | 8 | 1999–2006 |
| NIPPON SEIKO KK | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 8 | 1999–2006 |
| Fujisawa, JP | 1 | 1991 |