Inventor
SHIMADA KEIZO
JP43 patents
⚠️ This page may combine multiple inventors who share the name “SHIMADA KEIZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TEIJIN LTD
28 patentsUS4532275AJul 30, 1985
Fiber-reinforced composite materials
TEIJIN LTD36 citations92
US4498957AFeb 12, 1985
Aromatic polyamide paper-like sheet and processes for producing the same
TEIJIN LTD27 citations92
US4337155AJun 29, 1982
Chemical-resistant wholly aromatic polyamide fiber material
TEIJIN LTD30 citations92
US4324706AApr 13, 1982
Friction material
TEIJIN LTD105 citations92
US4398995AAug 16, 1983
Papery product
TEIJIN LTD22 citations81
US3966830AJun 29, 1976
Process for the nitration of halogenated benzene derivatives
TEIJIN LTD20 citations81
US4309476AJan 5, 1982
Core-in-sheath type aromatic polyamide fiber and process for producing the same
TEIJIN LTD14 citations74
US4245066AJan 13, 1981
Wholly aromatic polyamide blend composition
TEIJIN LTD13 citations74
US5091271AFeb 25, 1992
Shaped silion carbide-eased ceramic article
TEIJIN LTD7 citations73
US4529763AJul 16, 1985
Aromatic polyamide composition and processes for preparing film and fiber therefrom
TEIJIN LTD17 citations73
US4507467AMar 26, 1985
Wholly aromatic halogenated polyamide fiber and film
TEIJIN LTD17 citations73
US4413114ANov 1, 1983
Aromatic copolyamide containing 3,4'-diphenylene moiety
TEIJIN LTD10 citations73
US4355151AOct 19, 1982
Aromatic copolyamide containing 3,4'-diamino diphenylene moiety
TEIJIN LTD10 citations73
US4342715AAug 3, 1982
Process for preparing wholly aromatic polyamide shaped articles
TEIJIN LTD16 citations73
US4291142ASep 22, 1981
Crosslinked aromatic polyamide film and process for producing the same
TEIJIN LTD8 citations73
US4250073AFeb 10, 1981
Aromatic polyamide composition having polar amide and halogenated hydrocarbon mixed solvent
TEIJIN LTD8 citations73
US4150025AApr 17, 1979
Novel quinoline derivatives
TEIJIN LTD9 citations73
US4077960AMar 7, 1978
Imido-quinoline dyes
TEIJIN LTD7 citations73
US4826892AMay 2, 1989
Polycarbosilastyrene copolymer, method for producing the same, and process for producing shaped silicon carbide article from the same
TEIJIN LTD5 citations72
US4743411AMay 10, 1988
Process for producing shaped silicon carbide article from a polycarbosilastyrene copolymer
TEIJIN LTD10 citations72
US3936509AFeb 3, 1976
Process for separating dimethyl naphthalenes comprising 2,6-dimethyl naphthalenes as main component
TEIJIN LTD8 citations72
US5723568AMar 3, 1998
Polyamide solution composition and methods for producing fibrids and paper-like sheets using the same
TEIJIN LTD11 citations69
US4482603ANov 13, 1984
Wholly aromatic polyamide fiber non-woven sheet and processes for producing the same
TEIJIN LTD10 citations69
US4897229AJan 30, 1990
Process for producing a shaped silicon carbide-based ceramic article
TEIJIN LTD3 citations62
US4389521AJun 21, 1983
Process for preparing a cyclic amide polar solvent composition
TEIJIN LTD6 citations62
US4167506ASep 11, 1979
Diazaphenalene derivatives and resin containing color compositions
TEIJIN LTD4 citations61
US4067870AJan 10, 1978
8-Benzimido substituted quinaphthalone derivatives
TEIJIN LTD4 citations61
US5365001ANov 15, 1994
Method for preparing dialkylnaphthalene
TEIJIN LTD0 citations39
HITACHI LTD
10 patentsUS5446645AAug 29, 1995
Inverter apparatus and uinterruptible power supply using the same
HITACHI LTD279 citations96
US7888894B2Feb 15, 2011
Electric motor control system, series hybrid vehicle, electric motor control apparatus, and electric motor control method
HITACHI LTD55 citations95
US6084785AJul 4, 2000
Electric power converter
HITACHI LTD31 citations91
US5892674AApr 6, 1999
Method and apparatus for power converting AC into DC or DC into AC by converter having common phase connection
HITACHI LTD40 citations91
US7583036B2Sep 1, 2009
Electrically driven vehicle
HITACHI LTD14 citations84
US7315144B2Jan 1, 2008
AC drive apparatus, vehicle control apparatus, and power conversion method and vehicle control method
HITACHI LTD9 citations83
US7542312B2Jun 2, 2009
Electric power converter
HITACHI LTD10 citations82
US7841434B2Nov 30, 2010
Electric drive system for vehicle, electric control system for vehicle, electric drive method for vehicle
HITACHI LTD11 citations81
US5959858ASep 28, 1999
Electric power conversion apparatus
HITACHI LTD12 citations71
US7548439B2Jun 16, 2009
Electric power converter for reducing generated high frequency components
HITACHI LTD5 citations60