Inventor
Haruo Yokoyama
Inventor
Kokubunji, JP
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E01Bprimary
E01BPermanent way100%
PatentTitleYear
5,303,514'Rail grinding apparatus'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994Patents assigned to RAILWAY TECHNICAL RES INST (1)· patent assignee history
1994Patents assigned to SUMIKIN OSAKA PLANT ENGINEERIN (1)· patent assignee history
1994Patents assigned to SUMITOMO METAL TECHNOLOGY INC (1)· patent assignee history
1994Based in Kokubunji, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RAILWAY TECHNICAL RES INST | 1 | 1994 |
| SUMIKIN OSAKA PLANT ENGINEERIN | 1 | 1994 |
| SUMITOMO METAL TECHNOLOGY INC | 1 | 1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kokubunji, JP | 1 | 1994 |