Tsutomu Matsui
57Patents
10h-index
33Co-inventors
78Inventor score
Filing activity: Dec 27, 1984 → Oct 11, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6558835B1 | Battery module of parallel electric cell rod bodies | Emerging Cross-Sectional Technologies | 56 | Expired |
| US6335116B1 | Battery device having a turbulence accelerator for disordering a coolant flow | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6579642B2 | Battery device | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5777961A | Astigmatic difference correcting method for optical head and apparatus therefor | Physics | 23 | Expired |
| US5663840A | Objective lens actuator for optical head and used for high speed access | Physics | 23 | Expired |
| US5909416A | Land/groove detecting method and apparatus for an optical disk | Physics | 13 | Expired |
| US5513047A | Actuator for an optical head | Physics | 13 | Expired |
| US5852595A | Device for initializing an optical disc | Physics | 12 | Expired |
| US5748580A | Objective lens actuator for optical head | Physics | 11 | Expired |
| US5886978A | Optical head apparatus | Physics | 11 | Expired |
| US6562493B2 | Battery, lead member for battery connection, and battery pack using the same | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5559767A | Apparatus for detecting a focus error and a tracking error of an optical head | Physics | 8 | Expired |
| US5734638A | Objective lens actuator and method for manufacturing the same | Physics | 8 | Expired |
| US7251088B2 | Hard disc device | Physics | 7 | Expired |
| US5604641A | Objective lens actuator and method for manufacturing the same | Physics | 7 | Expired |
| US5784353A | Optical disk initializing apparatus | Physics | 7 | Expired |
| US5959961A | Optical recording medium having multiple recording layers and method for recording and reproducing thereof | Physics | 7 | Expired |
| US6278674A | Phase change optical disk initializing apparatus | Physics | 7 | Expired |
| US5047188A | Process for preparation of modified methacrylic resin molding material | Performing Operations; Transporting | 6 | Expired |
| US5757746A | Method and apparatus for controlling track kick for optical disk drive | Physics | 5 | Expired |
| US5901120A | Optical disc apparatus with sensing circuitry to judge a movement direction of a beam spot | Physics | 5 | Expired |
| US7330405B2 | Objective lens driving device for optical head | Physics | 4 | Expired |
| US5548449A | Objective-lens actuator | Physics | 4 | Expired |
| US5623372A | Thin type optical head | Physics | 4 | Expired |
| US6972890B2 | MEMS mirror device and optical disk apparatus | Performing Operations; Transporting | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.