Takayuki Fujiwara
112Patents
9h-index
112Co-inventors
83Inventor score
Filing activity: Jul 10, 1990 → May 15, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5342276A | Turret punch press with a die exchanging device | Emerging Cross-Sectional Technologies | 39 | Expired |
| US5222601A | Package of rolled photosensitive material | Physics | 24 | Expired |
| US8964314B2 | Lens and method of molding lens | Electricity | 21 | Active |
| US5350347A | Turret punch press | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5451195A | Turret punch press with a die exchanging device | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5119666A | Turret punch press | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5174095A | Method and apparatus for packaging a rolled web | Performing Operations; Transporting | 13 | Expired |
| US8685537B2 | Fiber reinforced resin composition, molding material, and method for producing fiber reinforced resin composition | Emerging Cross-Sectional Technologies | 12 | Active |
| US7064920B2 | Disk drive and breather filter having multiple ventilation paths and method of inspecting same | Physics | 11 | Expired |
| US10180626B2 | Sulfonium salt, resist composition, and patterning process | Physics | 8 | Active |
| US9720323B2 | Chemically amplified positive resist composition and pattern forming process | Electricity | 7 | Active |
| US5921067A | Pillow type packaging apparatus | Performing Operations; Transporting | 7 | Expired |
| US7045220B2 | Metal casting fabrication method | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7549788B2 | Fluid mixing apparatus and fluid mixing system | Performing Operations; Transporting | 7 | Expired |
| US10613437B2 | Resist composition and patterning process | Chemistry; Metallurgy | 6 | Active |
| US7199509B2 | Multilayered structure and method of manufacturing the same, and ultrasonic transducer | Emerging Cross-Sectional Technologies | 6 | Expired |
| US8278389B2 | Epoxy resin composition, prepreg, fiber-reinforced composite material | Emerging Cross-Sectional Technologies | 6 | Active |
| US7118798B2 | Polyimide-metal layered products and polyamideimide-metal layered product | Emerging Cross-Sectional Technologies | 5 | Expired |
| US11415887B2 | Resist composition and patterning process | Physics | 5 | Active |
| USD645060S1 | Gear case for a power lawn mower | General | 5 | Expired |
| US6793169B2 | Web winding apparatus, method of and apparatus for processing web edge, and web processing apparatus | Performing Operations; Transporting | 4 | Expired |
| US9164253B2 | Composite molded lens and method for producing the same | Chemistry; Metallurgy | 4 | Active |
| US10054853B2 | Monomer, polymer, resist composition, and patterning process | Chemistry; Metallurgy | 4 | Active |
| US6497384B1 | Method of and apparatus for winding film, method of and apparatus for supplying film roll core, and method of and apparatus for inspecting appearance of film roll | Performing Operations; Transporting | 4 | Expired |
| US10173975B2 | Sulfonium compound, resist composition, and pattern forming process | Physics | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.