Takashi Hamaoka
24Patents
14h-index
35Co-inventors
81Inventor score
Filing activity: Nov 1, 1977 → Dec 1, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4472024A | Apparatus for driving objective lens | Physics | 47 | Expired |
| US4302830A | Optical information reading-out apparatus | Physics | 45 | Expired |
| US6407543B1 | Rotation angle detector having first molded member integrating magnetic sensing element and output terminal and second molded member integrating stator core and first molded member | Physics | 42 | Expired |
| US6483296B1 | Angular position detection apparatus | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US5336045A | Fuel pump | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US6498479B1 | Rotational angle detector using linear converter | Physics | 25 | Expired |
| US6646435B1 | Angular position detecting apparatus for linearly detecting angular position in a wider range | Physics | 24 | Expired |
| US6356073B1 | Angular position detecting apparatus configured for concentrating magnetic flux into detecting portion | Physics | 24 | Expired |
| US6476600B2 | Angular position measuring device | Physics | 20 | Expired |
| US6499461B2 | Adjustment method and system for adjusting various temperature characteristics | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US6543417B2 | Intake air control device | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6448762B1 | Rotation-angle-detection device having magnetic sensor fixed to cover with detection direction transverse to cover longitudinal direction | Physics | 16 | Expired |
| US6756780B2 | Rotation angle detector having sensor cover integrating magnetic sensing element and outside connection terminal | Physics | 16 | Expired |
| US7030608B2 | Rotational angle sensing device and assembling method thereof | Physics | 15 | Expired |
| US5520547A | Corrosion-free electrical connector structure | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5105072A | Optical information recording/reproducing apparatus having stopping position deviation and correction circuitry relative to movement in the track direction | Physics | 7 | Expired |
| US6819102B2 | Rotation angle detector having sensor cover integrating magnetic sensing element and outside connection terminal | Physics | 7 | Expired |
| US7071683B2 | Rotation angle sensing device having enlarged detectable angle range | Physics | 6 | Expired |
| US6502544B2 | Method and apparatus for processing output of position measurement sensor | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US8783129B2 | Accelerator apparatus | Emerging Cross-Sectional Technologies | 3 | Active |
| US6845649B2 | Rotational angle output regulating method | Physics | 2 | Expired |
| US4168487A | Code detection circuit | Electricity | 1 | Expired |
| US7352173B2 | Turning angle detector | Physics | 1 | Expired |
| US11884553B2 | Magnesium oxide powder, thermally conductive filler, resin composition, and production method for magnesium oxide powder | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.