Yasuhiro Iwata
36Patents
13h-index
47Co-inventors
81Inventor score
Filing activity: Jul 17, 1979 → Apr 28, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5865365A | Method of fabricating an electronic circuit device | Electricity | 77 | Expired |
| US5117258A | Apparatus with copying fee based on size and number of sheets used | Physics | 27 | Expired |
| US5499668A | Process for making electronic device | Electricity | 26 | Expired |
| US5801350A | Surface reformation method of high polymer material | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5187534A | Stapling device and image forming apparatus having a stapling device | Physics | 23 | Expired |
| US4412734A | Electrophotographic copier with copy paper supply device | Performing Operations; Transporting | 22 | Expired |
| US4328855A | Method and apparatus for controlling automobile air conditioners | Physics | 22 | Expired |
| US4909207A | Cleaning system for fuel injectors | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4376879A | Button-less push switch boards | Electricity | 18 | Expired |
| US4391320A | Method and an apparatus for air conditioning for vehicles by controlling circulation of inside air and introduction of outside air | Performing Operations; Transporting | 17 | Expired |
| US4316251A | Electric control method for automobile air conditioner | Physics | 17 | Expired |
| US4259722A | Electric control method and apparatus for automobile air conditioner | Physics | 16 | Expired |
| US4466729A | Image forming apparatus | Physics | 15 | Expired |
| US4662454A | Foam extinguishing system | Human Necessities | 12 | Expired |
| US5940728A | Process for manufacturing electronic circuits | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4408278A | Electric control method for automobile air conditioner | Physics | 10 | Expired |
| US4340113A | Electric control method and apparatus for automobile air conditioning system | Physics | 9 | Expired |
| US4903072A | Image forming apparatus having cooling efficiency switching control function | Physics | 8 | Expired |
| US4990956A | Image forming apparatus | Physics | 7 | Expired |
| US4970556A | Auto-illuminating controller and image forming apparatus using the same | Physics | 6 | Expired |
| US5126792A | Image forming apparatus having erasing means for erasing an electrical charge in a non-image region of an image bearing member | Physics | 5 | Expired |
| US4589768A | Original transfer apparatus | Physics | 5 | Expired |
| US5142326A | Image forming apparatus eliminating image of document cover | Physics | 5 | Expired |
| US6161748A | Process for manufacturing electronic circuits | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5262831A | Image forming apparatus having sort/stack mode inquiring and selecting functions | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.