Toshio Yoshida
136Patents
28h-index
165Co-inventors
93Inventor score
Filing activity: Jan 22, 1976 → May 30, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8193129B2 | Refrigerator oil, compressor oil composition, hydraulic fluid composition, metalworking fluid composition, heat treatment oil composition, lubricant composition for machine tool and lubricant composition | Chemistry; Metallurgy | 757 | Active |
| US4459425A | 3-Levo-Menthoxypropane-1,2-diol | Chemistry; Metallurgy | 150 | Expired |
| US4377894A | Method of lining inner wall surfaces of hollow articles | Emerging Cross-Sectional Technologies | 122 | Expired |
| US5754906A | Photographic camera with barrier | Physics | 110 | Expired |
| US4491001A | Apparatus for processing welded joint parts of pipes | Chemistry; Metallurgy | 109 | Expired |
| US4884087A | Photographic film package and method of making the same | Physics | 77 | Expired |
| US4972649A | Photographic film package and method of making the same | Physics | 69 | Expired |
| US5617112A | Display control device for controlling brightness of a display installed in a vehicular cabin | Physics | 68 | Expired |
| US4954857A | Photographic film package and method of making the same | Physics | 61 | Expired |
| US5856347A | Antibacterial preparation or bactericide comprising 2-aminothiazole derivative and/or salt thereof | Chemistry; Metallurgy | 53 | Expired |
| US6883069B2 | Cache control device and manufacturing method thereof | Physics | 50 | Expired |
| US4332073A | Method of producing multiple-wall composite pipes | Emerging Cross-Sectional Technologies | 50 | Expired |
| US5063400A | Lens-fitted photographic film package | Physics | 45 | Expired |
| US4556240A | Corrosion-resistant, double-wall pipe structures | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5649305A | Memory call origination system for automatically originating a call to a calling party | Electricity | 44 | Expired |
| US4862439A | Recording device that identifies recordable areas of a disk record | Physics | 42 | Expired |
| US8438366B2 | Allocating rename register from separate register sets for each result data of multiple data processing instruction | Physics | 39 | Active |
| US4509776A | Corrosion-resistant pipe coupling structures | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US4855774A | Lens-fitted photographic film package | Physics | 37 | Expired |
| US4890130A | Lens-fitted photographic film package | Physics | 36 | Expired |
| US4833495A | Lens-fitted photographic film package | Physics | 36 | Expired |
| US4714794A | Synthetic oils | Chemistry; Metallurgy | 33 | Expired |
| US4949667A | Roll coating apparatus for forming a film of a high viscosity coating liquid on a surface | Electricity | 33 | Expired |
| US5699423A | Telephone set in which an echo signal is effectively cancelled in spite of being provided with a plurality of sound producing units | Electricity | 31 | Expired |
| US4449281A | Method of producing multiple-wall, composite tubular structures | Emerging Cross-Sectional Technologies | 30 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.