Inventor
SAKAMOTO SHUJI
JP25 patents
⚠️ This page may combine multiple inventors who share the name “SAKAMOTO SHUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IDEMITSU KOSAN CO
11 patentsUS6043334AMar 28, 2000
Polycarbonate resin, crosslinked polycarbonate resin and electrophotographic photoreceptor
IDEMITSU KOSAN CO35 citations92
US5389444AFeb 14, 1995
Organic electroluminescence device
IDEMITSU KOSAN CO38 citations92
US5213924AMay 25, 1993
Electrophotographic photoreceptor containing polycarbonate resin as binder resin
IDEMITSU KOSAN CO35 citations92
US6136521AOct 24, 2000
Polycarbonate, and molding and electrophotographic photoreceptor prepared therefrom
IDEMITSU KOSAN CO16 citations81
US5506331AApr 9, 1996
Polyester polymer, production thereof and electrophotographic photoreceptor using the same
IDEMITSU KOSAN CO18 citations81
US5561017AOct 1, 1996
Polyester polymer, production thereof and electrophotographic photoreceptor using the same
IDEMITSU KOSAN CO12 citations73
US5521041AMay 28, 1996
Polycarbonate, method of preparing the same and electrophotographic photoreceptor produced by using the same
IDEMITSU KOSAN CO12 citations73
US4985326AJan 15, 1991
Electrophotographic photoreceptor
IDEMITSU KOSAN CO16 citations73
US5151531ASep 29, 1992
Dihydric phenols
IDEMITSU KOSAN CO0 citations50
US4892924AJan 9, 1990
Polycarbonate containing compound from bis(3-phenyl-4-hydroxyphenyl)
IDEMITSU KOSAN CO1 citations50
US4923962AMay 8, 1990
Optical disk substrate comprising aromatic polycarbonate
IDEMITSU KOSAN CO0 citations47
SHOFU INC
8 patentsUS11648184B2May 16, 2023
Dental composition containing ion sustained-release glass
SHOFU INC0 citations59
US11559471B2Jan 24, 2023
Dental composition containing ion sustained-release glass
SHOFU INC0 citations59
US11504306B2Nov 22, 2022
Dental glass ionomer cement composition
SHOFU INC0 citations59
US12552956B2Feb 17, 2026
Photopolymerizable type dental surface coating composition
SHOFU INC0 citations52
US10307344B2Jun 4, 2019
Two-paste type sealer composition for root canal filling
SHOFU INC0 citations51
US10010382B2Jul 3, 2018
Piston easily mountable to cartridge and method of inserting the piston
SHOFU INC1 citations50
US9975140B2May 22, 2018
Applicator that allows easy mounting and removal of cartridge
SHOFU INC1 citations50
US10463581B2Nov 5, 2019
Sealer composition for root canal filling
SHOFU INC0 citations41
PENTEL KK
3 patentsUS9162199B2Oct 20, 2015
Two-component mixing container including piston using spring engagement
PENTEL KK2 citations61
US9156014B2Oct 13, 2015
Two-component mixing container with communication passage of liquid-tight structure
PENTEL KK1 citations50
US9271807B2Mar 1, 2016
Nozzle mounting structure of component container
PENTEL KK0 citations40