Inventor
Kenichi Hirao
Inventor
Otsu, JP
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification30%
C04BLime, magnesia20%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons20%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management20%
B23BTurning10%
PatentTitleYear
4,964,913'High bending strength, large impact strength hydraulic substances reinforced with acrylonitrile fibers and a process for production thereof'19904,861,659'High tenacity acrylonitrile fibers and a process for production thereof'19893,936,060'Means for detecting opening degree of claws of an electrically driven machine tool chuck'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976Patents assigned to FUJI ELECTRIC CO LTD (1)· patent assignee history
1976Based in Kawasaki, JP· patent location history
1989–1990Patents assigned to TORAY INDUSTRIES (2)· patent assignee history
1989–1990Based in Otsu, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TORAY INDUSTRIES | 2 | 1989–1990 |
| FUJI ELECTRIC CO LTD | 1 | 1976 |
Locations
| Location | Patents | Span |
|---|---|---|
| Otsu, JP | 2 | 1989–1990 |
| Kawasaki, JP | 1 | 1976 |