Inventor
CHUMAN TAKASHI
JP46 patents
⚠️ This page may combine multiple inventors who share the name “CHUMAN TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PIONEER ELECTRONIC CORP
27 patentsUS5990605ANov 23, 1999
Electron emission device and display device using the same
PIONEER ELECTRONIC CORP112 citations98
US6184612B1Feb 6, 2001
Electron emission device with electron supply layer of hydrogenated amorphous silicon
PIONEER ELECTRONIC CORP70 citations96
US6166487ADec 26, 2000
Electron emission device and display device using the same
PIONEER ELECTRONIC CORP78 citations96
US6130503AOct 10, 2000
Electron emission device and display using the same
PIONEER ELECTRONIC CORP73 citations96
US6066922AMay 23, 2000
Electron emission device and display device using the same
PIONEER ELECTRONIC CORP62 citations96
US6147443ANov 14, 2000
Electron emission device and display device using the same
PIONEER ELECTRONIC CORP19 citations93
US6144155ANov 7, 2000
Electron emission device and display device using the same
PIONEER ELECTRONIC CORP23 citations93
US5986390ANov 16, 1999
Electron emission device having peak intensity ratio characteristic of raman spectrum for fold ring of SiO2
PIONEER ELECTRONIC CORP25 citations93
US6404124B1Jun 11, 2002
Electron emission device and display apparatus using the same
PIONEER ELECTRONIC CORP31 citations92
US6400070B1Jun 4, 2002
Electron emission device and display device using the same
PIONEER ELECTRONIC CORP36 citations92
US6316873B1Nov 13, 2001
Electron emission device and display device using the same
PIONEER ELECTRONIC CORP28 citations92
US5328741AJul 12, 1994
Optical recording medium
PIONEER ELECTRONIC CORP21 citations92
US5326679AJul 5, 1994
Recording medium
PIONEER ELECTRONIC CORP32 citations92
US6259198B1Jul 10, 2001
Flat panel display apparatus with an array of electron emitting devices
PIONEER ELECTRONIC CORP29 citations91
US6278230B1Aug 21, 2001
Electron emission device and display device using the same
PIONEER ELECTRONIC CORP16 citations84
US5391413AFeb 21, 1995
Optical recording medium
PIONEER ELECTRONIC CORP11 citations74
US5370970ADec 6, 1994
Write-once-read-many optical disk
PIONEER ELECTRONIC CORP18 citations74
US5336584AAug 9, 1994
Optical recording medium
PIONEER ELECTRONIC CORP8 citations74
US5328802AJul 12, 1994
Optical recording medium
PIONEER ELECTRONIC CORP12 citations74
US5238723AAug 24, 1993
Optical recording medium
PIONEER ELECTRONIC CORP8 citations74
US5204220AApr 20, 1993
Optical recording medium
PIONEER ELECTRONIC CORP14 citations74
US5580631ADec 3, 1996
Optical recording medium and optical recording method
PIONEER ELECTRONIC CORP3 citations63
US5478623ADec 26, 1995
Optical recording medium and method of manufacturing the same
PIONEER ELECTRONIC CORP2 citations63
US5455094AOct 3, 1995
Optical recording medium
PIONEER ELECTRONIC CORP5 citations63
US5635268AJun 3, 1997
Optical recording medium
PIONEER ELECTRONIC CORP6 citations62
US5494778AFeb 27, 1996
Optical recording medium
PIONEER ELECTRONIC CORP0 citations52
US5431977AJul 11, 1995
Optical recording medium
PIONEER ELECTRONIC CORP1 citations52
PIONEER CORP
17 patentsUS6285123B1Sep 4, 2001
Electron emission device with specific island-like regions
PIONEER CORP76 citations96
US6787992B2Sep 7, 2004
Display device of flat panel structure with emission devices of matrix array
PIONEER CORP38 citations92
US6744063B2Jun 1, 2004
Image pickup device including electron-emitting devices
PIONEER CORP27 citations92
US6472803B1Oct 29, 2002
Electron emission light-emitting device and display apparatus using the same
PIONEER CORP29 citations92
US6388376B1May 14, 2002
Electron emission device with electron supply layer having reduced resistance
PIONEER CORP23 citations92
US6700132B2Mar 2, 2004
Flat panel display device utilizing electron emission devices
PIONEER CORP16 citations84
US7095040B2Aug 22, 2006
Electron-emitting device and method of manufacturing the same and display apparatus using the same
PIONEER CORP9 citations74
US11417854B2Aug 16, 2022
Light-emitting device and light-emitting module
PIONEER CORP2 citations72
US11943950B2Mar 26, 2024
Light-emitting device and light-emitting module
PIONEER CORP0 citations62
US7968458B2Jun 28, 2011
Electronic circuit board and its manufacturing method
PIONEER CORP2 citations62
US7345658B2Mar 18, 2008
Three-dimensional image display device
PIONEER CORP2 citations62
US7206112B2Apr 17, 2007
Image display device and manufacuring method
PIONEER CORP2 citations62
US7165841B2Jan 23, 2007
Stereoscopic image display apparatus
PIONEER CORP6 citations62
US11411194B2Aug 9, 2022
Light-emitting device
PIONEER CORP0 citations61
US8049404B2Nov 1, 2011
Organic electroluminescent display panel and manufacturing method thereof
PIONEER CORP2 citations60
US7355563B2Apr 8, 2008
Display apparatus and display device
PIONEER CORP1 citations51
US7189480B2Mar 13, 2007
Mask used for layer formation and process of making the mask
PIONEER CORP0 citations51