Inventor
KUME HIDEHIRO
JP19 patents
⚠️ This page may combine multiple inventors who share the name “KUME HIDEHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
11 patentsUS5727111AMar 10, 1998
Optical pick-up and light detecting cover therefor
SONY CORP24 citations92
US5541899AJul 30, 1996
Optical pickup device with movable objective lens and stationary focusing and tracking coils
SONY CORP31 citations92
US5005162AApr 2, 1991
Optical head devices for use in disc players
SONY CORP44 citations92
US4823331AApr 18, 1989
Focusing detection apparatus
SONY CORP24 citations92
US5181195AJan 19, 1993
Tracking error signal generator with dc offset cancellation
SONY CORP24 citations91
US5181193AJan 19, 1993
Optical pickup device for a recording and/or reproducing apparatus
SONY CORP13 citations73
US5144614ASep 1, 1992
Optical pickup device
SONY CORP9 citations73
US5060217AOct 22, 1991
Optical head devices for use in recording and/or reproduction of information
SONY CORP7 citations73
US4897828AJan 30, 1990
Optical pickup device
SONY CORP10 citations73
US4893296AJan 9, 1990
Optical pickup device
SONY CORP15 citations73
US4873429AOct 10, 1989
Optical pick-up head without pick-up of stray light
SONY CORP18 citations73
HAMAMATSU PHOTONICS KK
4 patentsUS5864207AJan 26, 1999
Photomultiplier with lens element
HAMAMATSU PHOTONICS KK41 citations92
US6114621ASep 5, 2000
Photomultiplier with magnetic shielding case
HAMAMATSU PHOTONICS KK7 citations73
US5965982AOct 12, 1999
Side-on type photomultiplier
HAMAMATSU PHOTONICS KK4 citations62
US5847380ADec 8, 1998
Side-on type photomultiplier comprising an envelope having an opening, a lens element, and a lens positioning structure
HAMAMATSU PHOTONICS KK3 citations62