Takashi Matsumoto
445Patents
35h-index
570Co-inventors
93Inventor score
Filing activity: Dec 2, 1975 → Apr 24, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8378464B2 | Method for manufacturing semiconductor device, semiconductor device, semiconductor manufacturing apparatus and storage medium | Electricity | 447 | Active |
| US4867629A | Dusttight storage cabinet apparatus for use in clean rooms | Emerging Cross-Sectional Technologies | 386 | Expired |
| US6346795B2 | Discharge control circuit of batteries | Electricity | 162 | Expired |
| US5222229A | Multiprocessor system having synchronization control mechanism | Physics | 155 | Expired |
| US7195170B2 | Post-bit: multimedia ePaper stickies | Physics | 121 | Expired |
| US5977732A | Apparatus and method for determining presence or absence of foreign object or the like caught in power-open-and-closure mechanism | Electricity | 120 | Expired |
| US5968382A | Laser cleavage cutting method and system | Emerging Cross-Sectional Technologies | 117 | Expired |
| US5072178A | Method and apparatus for testing logic circuitry by applying a logical test pattern | Physics | 116 | Expired |
| US9822009B2 | Method for producing graphene | Chemistry; Metallurgy | 103 | Active |
| US6243623A | Leg type mobile robot control apparatus | Performing Operations; Transporting | 84 | Expired |
| US6289265A | Controller for legged mobile robot | Performing Operations; Transporting | 83 | Expired |
| US5897643A | System for maintaining a record of documents including document copies | Physics | 82 | Expired |
| US4840921A | Process for the growth of III-V group compound semiconductor crystal on a Si substrate | Emerging Cross-Sectional Technologies | 80 | Expired |
| US6064167A | Control system for controlling the knee joint actuators of a legged robot in response to a detected fall condition so as to lower the center of gravity of the robot | Performing Operations; Transporting | 78 | Expired |
| US5416393A | Legged mobile robot foot structure | Performing Operations; Transporting | 67 | Expired |
| US4893072A | Apparatus for testing an integrated circuit device | Physics | 61 | Expired |
| US5043922A | Graphics system shadow generation using a depth buffer | Physics | 61 | Expired |
| US6505096B2 | Posture control system of legged mobile robot | Performing Operations; Transporting | 56 | Expired |
| US5974366A | Apparatus for detecting the landing position of foot sole of legged moving robot | Performing Operations; Transporting | 55 | Expired |
| US7145305B2 | System for estimating attitude of leg type moving robot itself | Physics | 53 | Expired |
| US7112938B2 | Attitude control device of mobile robot | Performing Operations; Transporting | 49 | Expired |
| US7120518B2 | Device for generating motion of legged mobile robot | Performing Operations; Transporting | 49 | Expired |
| US7606634B2 | Control device for mobile body | Performing Operations; Transporting | 49 | Expired |
| US4904153A | Transporting robot for semiconductor wafers | Emerging Cross-Sectional Technologies | 47 | Expired |
| US7603234B2 | Controller of legged mobile robot | Performing Operations; Transporting | 46 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.