Takahiro Sakaguchi
76Patents
11h-index
84Co-inventors
81Inventor score
Filing activity: Jan 25, 1985 → Jul 20, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6199739A | Nail guns having means for preventing the nail driving operation | Performing Operations; Transporting | 118 | Expired |
| US6192996A | Mode changing mechanism for use in a hammer drill | Performing Operations; Transporting | 75 | Expired |
| US4697129A | Stepping motor drive system and method capable of stopping the rotor in a required angular position | Electricity | 54 | Expired |
| US5524175A | Neuro-computer system for executing a plurality of controlling algorithms | Physics | 51 | Expired |
| US4677359A | Stepping motor drive method and system capable of stopping the rotor in a required angular position | Electricity | 49 | Expired |
| US6161744A | Fastener tool support | Performing Operations; Transporting | 35 | Expired |
| US5589722A | Sheet coil motor and method of fabricating the same | Electricity | 27 | Expired |
| US5767639A | Electronic control system for a brushless electric motor | Electricity | 24 | Expired |
| US5245235A | Motor having index detection mechanism used for disc apparatus and disc apparatus using such a motor | Electricity | 13 | Expired |
| US4758915A | Resilient support for an eccentric drive pin of disk drive apparatus | Physics | 12 | Expired |
| US4990108A | Connector device for connecting electronic components | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4658311A | Magnetic data transfer apparatus having a disk drive mechanism protected against leakage flux | Physics | 11 | Expired |
| US5303223A | Head carriage apparatus moved by a lead-screw shaft including resilient means for pressing the lead-screw shaft in a slanting direction toward the head carriage | Physics | 10 | Expired |
| US5436583A | Timing signal generating circuit | Electricity | 8 | Expired |
| US5212417A | Stepping motor for driving head carriage and disc drive unit comprising such motor | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6157153A | Motor driver | Electricity | 6 | Expired |
| US7816067B2 | Coating-type underlayer coating forming composition for lithography containing naphthalene resin derivative | Physics | 6 | Active |
| US6644553B1 | Portable IC card terminal | Physics | 6 | Expired |
| US7736822B2 | Resist underlayer coating forming composition for mask blank, mask blank and mask | Physics | 5 | Active |
| US5400191A | Electronic index pulse generating system for speed control in rotating disk data storage apparatus | Physics | 5 | Expired |
| US5371635A | Electronic index pulse generating system for speed control in rotating disk data | Physics | 5 | Expired |
| US4700245A | Drive pin for a data transfer apparatus with a disklike record medium | Physics | 5 | Expired |
| US5450260A | Space saving support mechanism for an eccentric drive pin in a rotating disk storage apparatus | Physics | 5 | Expired |
| US5263779A | Thrust ball-bearing | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US6301070A | Disk device having a recording medium rotatable in a controlled stepwise manner in response to a reference clock signal of variable frequency | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.