Jun Nakano
64Patents
8h-index
106Co-inventors
81Inventor score
Filing activity: Feb 23, 1976 → Jun 16, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4833519A | Semiconductor device with a wiring layer having good step coverage for contact holes | Electricity | 43 | Expired |
| US4948091A | Motor-operated valve | Electricity | 42 | Expired |
| US5783844A | Optical semiconductor device | Electricity | 24 | Expired |
| US5065061A | EIEC tromagnetic actuator for valve stem | Electricity | 23 | Expired |
| US8113312B2 | Evaporative emissions canister arrangement for a motorcycle, and motorcycle incorporating same | Performing Operations; Transporting | 13 | Active |
| US6482279B2 | Transcribing method | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4000247A | Dielectric active medium for lasers | Chemistry; Metallurgy | 9 | Expired |
| US7549241B2 | Hydraulic control device for loader | Fixed Constructions | 8 | Active |
| US6790697B2 | Optical semiconductor device and method of fabricating the same | Electricity | 7 | Expired |
| US7790263B2 | Ag alloy reflective film for optical information recording medium, optical information recording medium and Ag alloy sputtering target for forming Ag alloy reflective film for optical information recording medium | Emerging Cross-Sectional Technologies | 6 | Active |
| US6400677B2 | High recording density optical disc | Physics | 5 | Expired |
| US7548505B2 | Optical recording medium having a relationship between groove width and track pitch | Physics | 5 | Expired |
| US7059237B2 | Multiple-directional switching valve | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US6889381B2 | Optical recording medium and method of manufacturing the same | Physics | 4 | Expired |
| US7154843B2 | Stamper and optical disk with specific dimensions, surface roughness, and a land and a groove provided in a non-signal recording area | Physics | 4 | Expired |
| US8210302B2 | Layout structure for canister in vehicle | Emerging Cross-Sectional Technologies | 3 | Active |
| US7843796B2 | Optical information recording medium and method of marking BCA (burst cutting area) into the same | Physics | 3 | Active |
| US6403986B1 | Optical semiconductor device and method of fabricating the same | Electricity | 3 | Expired |
| US6882616B2 | Optical recording medium with high density track pitch and optical disk device for recording and playback of the same | Physics | 2 | Expired |
| US7242662B2 | Optical recording/reproducing medium, mother stamper for producing optical recording/reproducing medium and optical recording/reproducing device | Physics | 2 | Expired |
| US9593612B2 | Internal combustion engine | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8582997B2 | Image forming apparatus | Physics | 2 | Active |
| US7032378B2 | Flow divider system and valve device of the same | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US11554587B2 | Inkjet recording apparatus | Performing Operations; Transporting | 1 | Active |
| US7656780B2 | Optical recording medium having first and second wobble patterns | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.