Inventor
Tsuruyoshi Matsumoto
Inventor
Otake, JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus29%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons14%
C08LCompositions of macromolecular compounds11%
Y10TTechnical subjects covered by former us classification11%
C03CChemical composition of glasses, glazes or vitreous enamels9%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients9%
B29DProducing particular articles from plastics or from substances in a plastic state6%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds6%
A24DCigars3%
B29CShaping or joining of plastics3%
PatentTitleYear
5,913,311'Cigarette filter and filter material therefor'19995,264,531'Acrylonitrile copolymer, and fiber or core-sheath conjugate fiber prepared therefrom'19935,238,974'Plastic cladding composition for silica or glass core optical fiber, and silica or glass core optical fiber prepared therefrom'19935,234,766'Acrylonitrile copolymer, and fiber or core-sheath conjugate fiber prepared therefrom'19935,223,561'Polymer composition and optical fiber having cladding composed of that composition'19935,136,002'Fluorine resin composition'19925,121,461'Heat-resistant plastic optical fiber and process for the production thereof'19925,117,480'Polymer composition and optical fiber having cladding composed of that composition'19925,111,526'Plastic optical fibers and process for the production thereof'19925,048,924'Fluorine resin composition'19915,022,737'Plastic cladding composition for plastic core optical fiber, and plastic core optical fiber prepared therefrom'19914,966,435'Plastic optical fiber'19904,836,642'Cladding material for optical fiber'19894,663,382'Non-rigid vinyl chloride polymer resin composition'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1999Patents assigned to MITSUBISHI RAYON CO (14)· patent assignee history
1987–1993Based in Ootake, JP· patent location history
1989–1993Based in Otake, JP· patent location history
1990–1992Based in Ohtake, JP· patent location history
1993Based in Hiroshima, JP· patent location history
1999Patents assigned to JAPAN TOBACCO INC (1)· patent assignee history
1999Based in Toyama, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI RAYON CO | 14 | 1987–1999 |
| JAPAN TOBACCO INC | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Otake, JP | 7 | 1989–1993 |
| Ohtake, JP | 3 | 1990–1992 |
| Ootake, JP | 2 | 1987–1993 |
| Toyama, JP | 1 | 1999 |
| Hiroshima, JP | 1 | 1993 |