Hisao Tanaka
79Patents
12h-index
125Co-inventors
87Inventor score
Filing activity: Jul 20, 1973 → Nov 21, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5444844A | Figure drawing apparatus and inventory purchasing system using the same | Physics | 81 | Expired |
| US5214091A | Thermoplastic resin composition | Chemistry; Metallurgy | 36 | Expired |
| US4652490A | Heat shrinkable laminated packaging material | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4940542A | Liquid purifying device | Performing Operations; Transporting | 30 | Expired |
| US5660748A | Laser beam machine with an optical fiber cable | Physics | 23 | Expired |
| US5385974A | Graft copolymer, process for production thereof, and plasticizer comprising said copolymer as active component | Chemistry; Metallurgy | 21 | Expired |
| US4772390A | Water purifying method and system | Performing Operations; Transporting | 20 | Expired |
| US5292803A | Process for the production of polymeric polyols | Chemistry; Metallurgy | 16 | Expired |
| US4675213A | Hydrophilized membrane of porous hydrophobic material and process for preparing the same | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5948292A | Laser beam machining apparatus, focus positioning device for laser beam machining apparatus, and converged laser beam diameter measuring device | Performing Operations; Transporting | 14 | Expired |
| US6022438A | Method for producing steering wheel to which liquid pressure transfer print is applied | Performing Operations; Transporting | 13 | Expired |
| US4317760A | Halogen-containing resin composition | Chemistry; Metallurgy | 13 | Expired |
| US4454019A | Process for producing optically anisotropic carbonaceous pitch | Chemistry; Metallurgy | 12 | Expired |
| US5296552A | Adhesive resin composition | Chemistry; Metallurgy | 12 | Expired |
| US4421885A | Halogen-containing resin composition containing ester plasticizer | Chemistry; Metallurgy | 10 | Expired |
| US6038244A | Semiconductor excitation solid-state laser apparatus | Electricity | 9 | Expired |
| US3956211A | Alkyd-type resin composition containing chelate compound having catalytic activity | Chemistry; Metallurgy | 7 | Expired |
| US5064879A | Method for sorbing metallic ions using ethylene-N,N-dialkyl aminoalkyl acrylates polymers | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6541898B2 | Method of bonding piezoelectric element and electrode, and piezoelectric microactuator using the bonding method | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4582801A | Process for producing glutathione | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5757737A | Recording/reproducing data units in successive sectors by N heads using N memory devices | Physics | 5 | Expired |
| US9440755B2 | Liquid container and liquid consumption apparatus | Performing Operations; Transporting | 5 | Active |
| US4663227A | Hydrophilized membrane of porous hydrophobic material and process for preparing the same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5180784A | Adhesive resin composition | Emerging Cross-Sectional Technologies | 5 | Expired |
| US10757960B2 | Moisture control apparatus and moisture control method | Performing Operations; Transporting | 5 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.