Akira Matsumoto
222Patents
15h-index
284Co-inventors
89Inventor score
Filing activity: Sep 30, 1974 → Feb 21, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6841880B2 | Semiconductor device and method of fabricating semiconductor device with high CMP uniformity and resistance to loss that occurs in dicing | Electricity | 197 | Expired |
| US7399577B2 | Halogenated oxime derivatives and the use thereof | Chemistry; Metallurgy | 41 | Expired |
| US6596445B1 | O-acyloxime photoinitiators | Physics | 40 | Expired |
| US6091081A | Insulating film comprising amorphous carbon fluoride, a semiconductor device comprising such an insulating film | Electricity | 36 | Expired |
| US10446601B2 | Photodetector | Electricity | 33 | Active |
| US10580817B2 | Photodetector | Electricity | 32 | Active |
| US4876007A | Plate-type filter cartridge with internal support | Performing Operations; Transporting | 31 | Expired |
| US7267920B2 | Toner for developing electrostatic latent images, production method thereof, and electrostatic latent image developer using the same | Physics | 29 | Expired |
| US6022906A | .alpha.-aminoacetophenone photoinitiators | Physics | 25 | Expired |
| US6673850B1 | Photoinitiators and their applications | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6093633A | Method of making a semiconductor device | Electricity | 21 | Expired |
| US6118010A | Process for the preparation of 1-alkoxycarbonyl-3-phenylpropyl derivatives | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6191965A | Switching power supply | Emerging Cross-Sectional Technologies | 16 | Expired |
| US8241822B2 | Halogenated oxime derivatives and the use therof as latent acids | Chemistry; Metallurgy | 15 | Active |
| US4865948A | Optical recording material, process for preparing the same and optical recording method | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6555282B2 | Toner for developing electrostatic latent image, image forming method and image forming apparatus using the same | Physics | 13 | Expired |
| US6929896B2 | Onium salts and the use therof as latent acids | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5337973A | Magnetic tape cassette | Physics | 12 | Expired |
| US5809952A | Valve opening system of internal combustion engine | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6485885B1 | Photopolymerizable thermosetting resin compositions | Physics | 11 | Expired |
| US9114177B2 | Block copolymer having phenylboronic acid group introduced therein, and use thereof | Chemistry; Metallurgy | 11 | Active |
| US8668871B2 | Sensing device and biosensor | Physics | 11 | Active |
| US5274063A | Vinyl polymer having (meth)acryloyl groups on the side chains and method for preparing same | Chemistry; Metallurgy | 11 | Expired |
| US7326511B2 | Sulfonate derivatives and the use thereof as latent acids | Emerging Cross-Sectional Technologies | 10 | Expired |
| US8063506B2 | Car power source apparatus | Emerging Cross-Sectional Technologies | 9 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.