Inventor
FUJIWARA KAZUNOBU
JP15 patents
⚠️ This page may combine multiple inventors who share the name “FUJIWARA KAZUNOBU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA CORP
8 patentsUS5559785ASep 24, 1996
Optimum recording laser power control by testing an EFT signal's asymmetry with a frame synchronization circuit
YAMAHA CORP57 citations96
US6891782B1May 10, 2005
Optical disk recording apparatus having push-pull signal processing circuit, wobble extraction circuit and pre-pit detection circuit
YAMAHA CORP23 citations92
USRE39811ESep 4, 2007
Musical information recording and reproducing technique for use with a recording medium having a UTOC area
YAMAHA CORP8 citations73
US6757231B2Jun 29, 2004
Methods for identifying erroneous detection of pre-pit synchronization bit on optical disc and identifying stability/instability of pre-pit synchronization bit detection, and electric circuits therefor
YAMAHA CORP8 citations73
US5602811AFeb 11, 1997
Musical information recording and reproducing technique for use with a recording medium having a UTOC area
YAMAHA CORP9 citations73
US5590100ADec 31, 1996
Information recording/reproducing technique to record plural-channel information for subsequent simultaneous reproduction
YAMAHA CORP11 citations73
US5784349AJul 21, 1998
Musical information recording and reproducing technique for use with a recording medium
YAMAHA CORP4 citations62
US7092331B2Aug 15, 2006
Reproduction of audio data from recording medium
YAMAHA CORP1 citations52
TOKYO ELECTRON LTD
6 patentsUS10553407B2Feb 4, 2020
Plasma processing method and plasma processing apparatus
TOKYO ELECTRON LTD47 citations97
US11170979B2Nov 9, 2021
Plasma etching method and plasma etching apparatus
TOKYO ELECTRON LTD4 citations73
US11251048B2Feb 15, 2022
Plasma processing method and plasma processing apparatus
TOKYO ELECTRON LTD2 citations71
US12537172B2Jan 27, 2026
Plasma processing method and plasma processing apparatus
TOKYO ELECTRON LTD0 citations62
US10615005B2Apr 7, 2020
Plasma generating method
TOKYO ELECTRON LTD1 citations61
US11594398B2Feb 28, 2023
Apparatus and method for plasma processing
TOKYO ELECTRON LTD0 citations50