Kazumi Kimura
65Patents
14h-index
41Co-inventors
84Inventor score
Filing activity: Sep 25, 1974 → Nov 17, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5692819A | Illuminating device and projector utilizing the same | Electricity | 143 | Expired |
| US5387953A | Polarization illumination device and projector having the same | Physics | 90 | Expired |
| US5381278A | Polarization conversion unit, polarization illumination apparatus provided with the unit, and projector provided with the apparatus | Electricity | 73 | Expired |
| US5446510A | Image display apparatus | Physics | 58 | Expired |
| US5566367A | Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit | Electricity | 48 | Expired |
| US5452128A | Polarization illumination apparatus and projector using the apparatus | Physics | 37 | Expired |
| US6046835A | Scanning optical apparatus | Electricity | 33 | Expired |
| US5749642A | Illuminating optical system and projector utilizing the same | Physics | 32 | Expired |
| US5516350A | Process for producing synthetic quartz glass powder | Chemistry; Metallurgy | 26 | Expired |
| US5145510A | Silica glass powder and a method for its production and a silica glass body product made thereof | Emerging Cross-Sectional Technologies | 21 | Expired |
| US7268948B2 | Optical element and optical scanning device using the same | Physics | 19 | Expired |
| US5833341A | Illuminating optical system and projector utilizing the same | Physics | 17 | Expired |
| US5461500A | Polarization converting apparatus and optical instrument having the same | Physics | 17 | Expired |
| US6141118A | Optical scanning device | Performing Operations; Transporting | 16 | Expired |
| US6927917B2 | Optical element, scanning optical system having the same, and image forming apparatus | Physics | 13 | Expired |
| US5590942A | Polarizing conversion unit, illuminating device and projector using them | Electricity | 11 | Expired |
| US5966232A | Scanning optical system | Electricity | 10 | Expired |
| US6885486B2 | Scanning optical system and image forming apparatus using the same | Physics | 9 | Expired |
| US5604163A | Synthetic silica glass powder | Chemistry; Metallurgy | 9 | Expired |
| US6366385B2 | Multi-beam scanning optical system and image forming apparatus using the same | Physics | 8 | Expired |
| US6229646A | Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit | Electricity | 8 | Expired |
| US6108115A | Scanning optical system | Electricity | 8 | Expired |
| US3966853A | Process for preparing prilled porous ammonium nitrate | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7015940B1 | Scanning optical apparatus and color image forming apparatus using the same | Electricity | 5 | Expired |
| US6268877A | Scanning optical device featuring optical system image magnifications in main and subscanning directions within a prescribed range | Electricity | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.