Hideki Maruyama
20Patents
5h-index
28Co-inventors
69Inventor score
Filing activity: Apr 6, 1981 → Jun 20, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6172752A | Method and apparatus for simultaneously interferometrically measuring optical characteristics in a noncontact manner | Physics | 65 | Expired |
| US4407186A | Flow outlet structure for automotive air conditioner | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6108165A | Rotary drum equipment and recording/reproducing equipment using the same | Physics | 12 | Expired |
| US6962340B2 | Mechanical seal device | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5907162A | Light-emitting device and method for manufacturing the same | Physics | 8 | Expired |
| USD306211S | Combination torch and audible signal with stand | General | 5 | Expired |
| US7093836B2 | Seal device | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US7463275B2 | Light source for image writing apparatus and production method for light source | Performing Operations; Transporting | 3 | Expired |
| US8305851B2 | Optical disk apparatus | Physics | 1 | Active |
| US10246077B2 | Vehicle regenerative speed control device | Emerging Cross-Sectional Technologies | 1 | Active |
| US10024436B2 | Mechanical seal | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8154961B2 | Optical disk apparatus and focus jump method for multilayer optical disk | Physics | 0 | Active |
| US8208354B2 | Optical disc apparatus, driving method of optical disc apparatus | Physics | 0 | Active |
| US7936652B2 | Optical disc apparatus | Physics | 0 | Active |
| US8422351B2 | Optical disk apparatus and driving method thereof | Physics | 0 | Active |
| US8121000B2 | Optical disk apparatus | Physics | 0 | Active |
| US10253876B2 | Vehicle regenerative speed control device | Emerging Cross-Sectional Technologies | 0 | Active |
| US11300210B2 | Mechanical seal | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8077573B2 | Optical disk apparatus and disk identification method | Physics | 0 | Active |
| US8134902B2 | Optical disc drive apparatus and its control method | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.