Inventor
Kohichi Iohara
Inventor
Ibaraki, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
D01Fprimary
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons33%
C08LCompositions of macromolecular compounds22%
D02GCrimping or curling fibres, filaments, threads, or yarns17%
Y10TTechnical subjects covered by former us classification17%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds11%
PatentTitleYear
4,851,504'Cationically-dyeable, thermally-resistant copolyester fiber comprising quaternary phosphonium organic sulfonate groups'19894,622,381'Modified polyester fiber and process for preparation thereof'19864,609,710'Undrawn polyester yarn and process for manufacturing'19864,475,330'High twist polyester multifilament yarn and fabric made therefrom'19844,454,196'Polyester multifilament yarn and a process for manufacturing the same'19844,410,473'Process for manufacturing a polyester multifilament yarn'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–1989Patents assigned to TEIJIN LTD (6)· patent assignee history
1983–1986Based in Ibaraki, JP· patent location history
1986–1989Based in Suita, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TEIJIN LTD | 6 | 1983–1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ibaraki, JP | 4 | 1983–1986 |
| Suita, JP | 2 | 1986–1989 |