Inventor
Shitomi Katayama
Inventor
Yokohama, JP
Overview
13→
Patents
1976–1984
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification21%
G02BOptical elements, systems or apparatus16%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
B05DProcesses for applying fluent materials to surfaces, in general11%
C23CCoating metallic material8%
C03CChemical composition of glasses, glazes or vitreous enamels5%
C04BLime, magnesia5%
C07CAcyclic or carbocyclic compounds5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds3%
PatentTitleYear
4,465,711'Heat-resisting layer-constructions and method for preparing the same'19844,457,598'Reflector and method for manufacturing the same'19844,457,587'Reflector and method for manufacturing the same'19844,448,855'Heat resistant reflector'19844,431,268'Reflector and method for manufacturing the same'19844,379,199'Heat-resisting layer-constructions and method for preparing the same'19834,364,637'Highly reflective plastic reflector with crystalline inorganic film coating'19824,358,507'Multi-layer reflectors'19824,341,841'Multi-layer coating protective film form'19824,340,646'Multi-layer reflectors'19824,156,675'Urea polymer containing a sulfonate radical and method of preparing the same by a polymerization reaction of diaminosulfonate with diisocyanate'19794,136,079'Urea compound having carboxylate radical and method for producing the same'19793,937,764'Polymer electrolytes'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976Patents assigned to DENKI ONKYO CO LTD (1)· patent assignee history
1976Based in Akita, JP· patent location history
1979–1984Patents assigned to NHK SPRING CO LTD (12)· patent assignee history
1979–1984Based in Yokohama, JP· patent location history
1983–1984Patents assigned to YOKOHAMA KIKO CO (2)· patent assignee history
1983–1984Based in Kanagawa, JP· patent location history
1984Patents assigned to YOKOHAMA KIKO CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NHK SPRING CO LTD | 12 | 1979–1984 |
| YOKOHAMA KIKO CO | 2 | 1983–1984 |
| DENKI ONKYO CO LTD | 1 | 1976 |
| YOKOHAMA KIKO CO LTD | 1 | 1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 9 | 1979–1984 |
| Kanagawa, JP | 3 | 1983–1984 |
| Akita, JP | 1 | 1976 |