Kenichi Hamada
53Patents
12h-index
95Co-inventors
87Inventor score
Filing activity: Mar 2, 1989 → Sep 24, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5702505A | Method for collecting volatile organic substances | Performing Operations; Transporting | 37 | Expired |
| US5721405A | Tactile feedback mechanism for a multidirectional switch | Electricity | 33 | Expired |
| US6806317B2 | Pressure-sensitive adhesive/adhesive and block copolymer suitable for use therein | Chemistry; Metallurgy | 27 | Expired |
| US6329480A | Preparation process of acrylic acid ester polymer | Chemistry; Metallurgy | 26 | Expired |
| US6767976B2 | Process for polymerizing a methacrylic ester or an acrylic ester | Chemistry; Metallurgy | 20 | Expired |
| US5005086A | Focus control apparatus having two focusing speeds | Electricity | 18 | Expired |
| US5386550A | Pseudo-LSI device and debugging system incorporating same | Physics | 17 | Expired |
| US5695546A | Method for collecting volatile organic substances | Performing Operations; Transporting | 17 | Expired |
| US5003877A | Printing apparatus inker with end dams | Performing Operations; Transporting | 15 | Expired |
| US5742435A | Video-camera imaging-system zoom lens barrel | Physics | 15 | Expired |
| US8022139B2 | Polylactic acid composition | Emerging Cross-Sectional Technologies | 14 | Active |
| US6894114B2 | Block copolymer | Chemistry; Metallurgy | 14 | Expired |
| US6228946A | Block copolymer and polymer composition comprising the same | Chemistry; Metallurgy | 12 | Expired |
| US6781938B2 | Expected value generation unit and a data reproduction apparatus | Physics | 8 | Expired |
| US8603687B2 | Fuel cell system | Emerging Cross-Sectional Technologies | 7 | Active |
| US6555637B1 | Anionic polymerization process, and process for producing a polymer by the anionic polymerization process | Chemistry; Metallurgy | 7 | Expired |
| US6977879B1 | Apparatus for adjusting phase of clock signal based on phase error calculated from sampled values of readout signal | Physics | 7 | Expired |
| US6151282A | Clock matching apparatus for a data reproduction system | Physics | 6 | Expired |
| US6630554B1 | Process for polymerizing a methacrylic ester or an acrylic ester | Chemistry; Metallurgy | 5 | Expired |
| US6831884B2 | Clock adjusting device for use with data reproducing apparatus, offset detecting device, and data reproducing apparatus | Physics | 5 | Expired |
| US6143826A | Polymer blend | Chemistry; Metallurgy | 5 | Expired |
| US6878789B2 | Preparation process of acrylic acid ester polymer | Chemistry; Metallurgy | 5 | Expired |
| US7642738B2 | Power steering apparatus | Performing Operations; Transporting | 4 | Active |
| US6737493B2 | Biocompatible material | Chemistry; Metallurgy | 4 | Expired |
| US6603419B2 | Data reproduction device with simplified circuit structure | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.