LexDanaLexDanabeta
Inventor

Kazunobu Fujiwara

Inventor
Hamamatsu, JP

Overview

11→
Patents
1996–2020
Patent span
Physics
Primary field (CPC G)

Patents· 11 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer44%
G10HElectrophonic musical instruments17%
H01JElectric discharge tubes or discharge lamps11%
H03HImpedance networks, e.g. resonant circuits6%
H04NPictorial communication, e.g. television6%
H04SStereophonic systems6%
H05HPlasma technique6%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h106%
PatentTitleYear
10,615,005Plasma generating method202010,553,407Plasma processing method and plasma processing apparatus20208,923,526'Audio device'2014RE039811'Musical information recording and reproducing technique for use with a recording medium having a UTOC area'20077,092,331'Reproduction of audio data from recording medium'20066,891,782'Optical disk recording apparatus having push-pull signal processing circuit, wobble extraction circuit and pre-pit detection circuit'20056,757,231'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'20045,784,349'Musical information recording and reproducing technique for use with a recording medium'19985,602,811'Musical information recording and reproducing technique for use with a recording medium having a UTOC area'19975,590,100'Information recording/reproducing technique to record plural-channel information for subsequent simultaneous reproduction'19965,559,785'Optimum recording laser power control by testing an EFT signal\'s asymmetry with a frame synchronization circuit'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2014Patents assigned to YAMAHA CORP (9)· patent assignee history
1996–2014Based in Hamamatsu, JP· patent location history
2014Patents assigned to FUJIWARA KAZUNOBU (1)· patent assignee history
2014Patents assigned to KANO MASAYA (1)· patent assignee history
2014Patents assigned to KUMAGAI KUNIHIRO (1)· patent assignee history
2020Patents assigned to TOKYO ELECTRON LTD (2)· patent assignee history
2020Based in Miyagi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
YAMAHA CORP91996–2014
TOKYO ELECTRON LTD22020
FUJIWARA KAZUNOBUself12014
KANO MASAYA12014
KUMAGAI KUNIHIRO12014
Locations
LocationPatentsSpan
Hamamatsu, JP91996–2014
Miyagi, JP22020