Hiroshi Sano
104Patents
22h-index
150Co-inventors
93Inventor score
Filing activity: Sep 21, 1973 → Apr 12, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6712760B2 | Television device of portable endoscope | Electricity | 147 | Expired |
| US6099466A | Fluorescence diagnosis endoscope system | Electricity | 145 | Expired |
| US6471636B1 | Fluorescence diagnosis endoscope system | Electricity | 106 | Expired |
| US5394864A | Bendable portion of endoscope | Human Necessities | 81 | Expired |
| US5772580A | Biological fluorescence diagnostic apparatus with distinct pickup cameras | Physics | 67 | Expired |
| US6855109B2 | Portable endoscope | Human Necessities | 60 | Expired |
| US6177751A | Rotary electric machine and bobbin thereof | Electricity | 55 | Expired |
| US5891016A | Fluorescence endoscope having an exciting light filter and a fluorescence filter | Physics | 53 | Expired |
| US5365034A | Defect detection and defect removal apparatus of thin film electronic device | Physics | 52 | Expired |
| US4841190A | Resin-filled permanent-magnet stepping motor | Electricity | 52 | Expired |
| US6166468A | Rotary electric machine and bearing structure thereof | Electricity | 47 | Expired |
| US4094089A | Jumping rail | Human Necessities | 47 | Expired |
| US5588950A | Portable endoscope system | Physics | 43 | Expired |
| US4146991A | Toy trackway | Human Necessities | 38 | Expired |
| US5397718A | Method of manufacturing thin film transistor | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6001058A | Portable endoscope system | Physics | 34 | Expired |
| US4756614A | Film projector toy | Physics | 32 | Expired |
| US5701903A | Fluoroscopic apparatus | Human Necessities | 29 | Expired |
| US4698324A | Method for manufacture of catalyst composite having gold or mixture of gold with catalytic metal oxide deposited on carrier | Performing Operations; Transporting | 29 | Expired |
| US5746494A | Illuminating apparatus of endoscope | Physics | 27 | Expired |
| US5135893A | Carbonaceous ceramic composite for use in contact with molten nonferrous metal | Chemistry; Metallurgy | 24 | Expired |
| US5036834A | Illuminating light introducing device for endoscope | Human Necessities | 22 | Expired |
| US5924978A | Portable endoscope system with a bayonet switching mechanism. | Human Necessities | 21 | Expired |
| US5777413A | Bearing installation in a floppy disk driver motor | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US3957674A | Magnesium hydroxide suspension | Chemistry; Metallurgy | 20 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.