Shigeru Shirai
80Patents
20h-index
63Co-inventors
91Inventor score
Filing activity: Apr 7, 1977 → Jan 7, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4460670A | Photoconductive member with .alpha.-Si and C, N or O and dopant | Electricity | 88 | Expired |
| US7372002B2 | Fluid heating device and cleaning device using the same | Fixed Constructions | 63 | Expired |
| US5443645A | Microwave plasma CVD apparatus comprising coaxially aligned multiple gas pipe gas feed structure | Chemistry; Metallurgy | 41 | Expired |
| US4394425A | Photoconductive member with .alpha.-Si(C) barrier layer | Physics | 41 | Expired |
| US4460669A | Photoconductive member with .alpha.-Si and C, U or D and dopant | Physics | 38 | Expired |
| US4359514A | Photoconductive member having barrier and depletion layers | Emerging Cross-Sectional Technologies | 37 | Expired |
| US7191473B2 | Sanitary washing apparatus | Performing Operations; Transporting | 36 | Expired |
| US4394426A | Photoconductive member with .alpha.-Si(N) barrier layer | Physics | 35 | Expired |
| US4465750A | Photoconductive member with a -Si having two layer regions | Electricity | 34 | Expired |
| US4414319A | Photoconductive member having amorphous layer containing oxygen | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4409308A | Photoconductive member with two amorphous silicon layers | Emerging Cross-Sectional Technologies | 30 | Expired |
| US8180207B2 | Heat exchanger | Mechanical Engineering; Lighting; Heating | 29 | Active |
| US4452875A | Amorphous photoconductive member with .alpha.-Si interlayers | Physics | 23 | Expired |
| US5582944A | Light receiving member | Physics | 23 | Expired |
| US4557987A | Photoconductive member having barrier layer and amorphous silicon charge generation and charge transport layers | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4403026A | Photoconductive member having an electrically insulating oxide layer | Physics | 22 | Expired |
| US6920654B2 | Water shower apparatus | Human Necessities | 21 | Expired |
| US4443529A | Photoconductive member having an amorphous silicon photoconductor and a double-layer barrier layer | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4788120A | Light receiving member for use in electrophotography having an amorphous silicon layer | Physics | 20 | Expired |
| US5284730A | Electrophotographic light-receiving member | Physics | 20 | Expired |
| US4452874A | Photoconductive member with multiple amorphous Si layers | Physics | 19 | Expired |
| US4483911A | Photoconductive member with amorphous silicon-carbon surface layer | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4359512A | Layered photoconductive member having barrier of silicon and halogen | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4170339A | Analog displacement type electromagnetic valve | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4490453A | Photoconductive member of a-silicon with nitrogen | Physics | 19 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.