Kaoru Iwata
20Patents
10h-index
28Co-inventors
75Inventor score
Filing activity: Nov 20, 1973 → Apr 13, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4414254A | Selective light-transmitting laminated structure | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6388032B1 | Cyclic olefin polymer containing little catalyst residue | Chemistry; Metallurgy | 39 | Expired |
| US5695694A | Method of producing an acylated cellulose film | Chemistry; Metallurgy | 28 | Expired |
| US5196147A | Organic nonlinear optical substance | Physics | 20 | Expired |
| US5009986A | Naphthalocyanine based compound and optical recording medium containing the same | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4266053A | Melamine group-containing (meth)acrylate | Chemistry; Metallurgy | 14 | Expired |
| US5759449A | Film of aromatic polyethersulfone, process for the production thereof, and solution composition for the production thereof | Physics | 13 | Expired |
| US5478518A | Polycarbonate film for optical purposes and a production process thereof | Physics | 13 | Expired |
| US5645766A | Film of aromatic polyethersulfone process for the production thereof and solution composition for the production thereof | Physics | 12 | Expired |
| US5958305A | Film of aromatic polyethersulfone, process for the production thereof, and solution composition for the production thereof | Physics | 12 | Expired |
| US5561180A | Polycarbonate film for optical purposes and a production process thereof | Physics | 10 | Expired |
| US6232407A | Process for producing hydrogenated .alpha.-olefin-dicyclopentadiene copolymer, method for molding the same and optical material | Chemistry; Metallurgy | 10 | Expired |
| US3946033A | Process for the preparation of hydantoin derivatives | Chemistry; Metallurgy | 8 | Expired |
| US6881453B2 | Optical film | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6191243A | .alpha.-olefin-cycloolefin copolymers and process for their production | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5268478A | Sulfur compound-coordinate bonded organic coloring matter, compositions of same, and photorecording media containing same | Physics | 1 | Expired |
| US6476153B2 | Process for producing hydrogenated &agr;-olefin-dicyclopentadiene copolymer, method for molding the same and optical material | Chemistry; Metallurgy | 1 | Expired |
| US11794257B2 | Cutting insert and cutting tool | Performing Operations; Transporting | 0 | Active |
| US11731201B2 | Cutting insert and cutting tool | General | 0 | Revoked |
| US4495343A | Visible light-sensitive polyester polymer and visible light-sensitive resin composition containing said polymer | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.