Inventor
TSUJI MASAYOSHI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “TSUJI MASAYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
9 patentsUS6350998B1Feb 26, 2002
Ultraspeed low-voltage drive avalanche multiplication type semiconductor photodetector
NEC CORP93 citations97
US6323507B1Nov 27, 2001
Semiconductor photonic element, method of fabricating the same, and semiconductor photonic device equipped therewith
NEC CORP55 citations92
US5801872ASep 1, 1998
Semiconductor optical modulation device
NEC CORP50 citations92
US5539221AJul 23, 1996
Staircase avalanche photodiode
NEC CORP44 citations92
US5471068ANov 28, 1995
Semiconductor photodetector using avalanche multiplication and strained layers
NEC CORP20 citations92
US5204539AApr 20, 1993
Avalanche photodiode with hetero-periodical structure
NEC CORP17 citations73
US7974328B2Jul 5, 2011
Surface-emission type semiconductor laser
NEC CORP1 citations48
US7881358B2Feb 1, 2011
Surface emitting laser
NEC CORP1 citations48
US7940828B2May 10, 2011
Optical communication system and optical transmitter
NEC CORP0 citations38
HISAMITSU PHARMACEUTICAL CO
6 patentsUS4455146AJun 19, 1984
Novel plasters
HISAMITSU PHARMACEUTICAL CO65 citations91
US4337270AJun 29, 1982
Novel anthranilic acid derivatives
HISAMITSU PHARMACEUTICAL CO21 citations81
US4877876AOct 31, 1989
Novel indenothiazole derivative and process for preparing the same
HISAMITSU PHARMACEUTICAL CO15 citations67
US4443626AApr 17, 1984
2,3-Dihydro-indene derivatives
HISAMITSU PHARMACEUTICAL CO2 citations62
US5175286ADec 29, 1992
Dibenz[b,e]oxepin derivatives
HISAMITSU PHARMACEUTICAL CO0 citations48
US4895956AJan 23, 1990
3-aroyl-6,7-dihydro-5H-pyrrolo(1,2-c)imidazole-7-carboxylic acid derivatives
HISAMITSU PHARMACEUTICAL CO0 citations48