Inventor · disambiguated record
Hajime Kitamura
Also filed as: KITAMURA HAJIME
40 granted patents·1 pending application·680 citations·filing 1974–2003
98Inventor score
Files withSHINETSU CHEMICAL CO34TOSHIBA MACHINE CO LTD3CHUO DENKI KOGYO CO LTD1HITACHI LTD1SHIN ETSO CHEMICAL CO LTD1
Top patents by PatentIndex Score
41 records- 0192US4980021AMethod for preparation of edged medical toolSHINETSU CHEMICAL CO·Filed 1989·Granted Dec 25, 1990·80 cites·4 claims
- 0289US4497722AComposition for plastic magnetsSHINETSU CHEMICAL CO·Filed 1984·Granted Feb 5, 1985·44 cites·8 claims
- 0385US4765860AMethod of making a flexible base plate for printed circuit boardUENO SUSUMU·Filed 1987·Granted Aug 23, 1988·55 cites·1 claims
- 0480US4272424AProcess for the preparation of vinyl chloride-based resinsSHINETSU CHEMICAL CO·Filed 1979·Granted Jun 9, 1981·22 cites·4 claims
- 0578US4976540AMethod for detecting colored foreign particles in light-colored powder and system thereforSHINETSU CHEMICAL CO·Filed 1989·Granted Dec 11, 1990·39 cites·6 claims
- 0676US4105839AMethod for polymerizing ethylenically unsaturated monomers in order to eliminate polymer depositionSHINETSU CHEMICAL CO·Filed 1976·Granted Aug 8, 1978·20 cites·13 claims
- 0775US5423216AApparatus for automatically determining bulk specific gravity of powdery productSHINETSU CHEMICAL CO·Filed 1993·Granted Jun 13, 1995·38 cites·6 claims
- 0875US4665145AComposite polymeric material comprising vinyl chloride and organosilicon moieties and a method for the preparation thereofSHINETSU CHEMICAL CO·Filed 1984·Granted May 12, 1987·24 cites·1 claims
- 0974US4757124AProcess for production of vinyl chloride polymerSHINETSU CHEMICAL CO·Filed 1987·Granted Jul 12, 1988·22 cites·12 claims
- 1073US5532942AAutomatic apparatus for inspecting powdery productSHINETSU CHEMICAL CO·Filed 1993·Granted Jul 2, 1996·40 cites·10 claims
- 1170US4402893AMethod for the preparation of a cellular foamed body of a vinyl chloride-based resinSHINETSU CHEMICAL CO·Filed 1980·Granted Sep 6, 1983·22 cites·6 claims
- 1269US6811925B2Nonaqueous electrolyte secondary cell and a tungsten or molybdenum substituted lithium positive electrode active materialCHUO DENKI KOGYO CO LTD·Filed 2001·Granted Nov 2, 2004·11 cites·10 claims
- 1369US4845174AProcess for preparing a vinyl chloride polymerSHINETSU CHEMICAL CO·Filed 1988·Granted Jul 4, 1989·18 cites·13 claims
- 1464US4232141AMethod for the preparation of vinyl chloride polymersSHINETSU CHEMICAL CO·Filed 1978·Granted Nov 4, 1980·12 cites·9 claims
- 1564US4105838AMethod for the polymerization of vinyl chlorideSHINETSU CHEMICAL CO·Filed 1975·Granted Aug 8, 1978·11 cites·20 claims
- 1662US5241022ACoating solution for preventing adhesion of polymer scale and method for preventing scale adhesion during preparation of polymersSHINETSU CHEMICAL CO·Filed 1992·Granted Aug 31, 1993·15 cites·12 claims
- 1762US4272622AMethod for preventing polymer scale deposition in the polymerization of an ethylenically unsaturated monomer in an aqueous mediumSHINETSU CHEMICAL CO·Filed 1980·Granted Jun 9, 1981·12 cites·8 claims
- 1861US5858571AMethod of producing hydrogen absorbing alloy powder, and electrode using hydrogen absorbing alloy powder produced by said methodSHINETSU CHEMICAL CO·Filed 1997·Granted Jan 12, 1999·21 cites·19 claims
- 1961US4501428ARoll seal boxes for continuous vacuum treating apparatusHITACHI LTD·Filed 1984·Granted Feb 26, 1985·20 cites·5 claims
- 2060US6699026B2Injection molding apparatusTOSHIBA MACHINE CO LTD·Filed 2003·Granted Mar 2, 2004·4 cites·13 claims
- 2157US3945958AMethod for suspension-polymerizing vinyl chlorideSHINETSU CHEMICAL CO·Filed 1974·Granted Mar 23, 1976·8 cites·6 claims
- 2254US5492023AApparatus for automatically determining rate of plasticizer absorption of resin powderSHINETSU CHEMICAL CO·Filed 1993·Granted Feb 20, 1996·19 cites·5 claims
- 2354US5292836APreparation of vinyl chloride polymers using high-speed and low-speed shear agitationSHINETSU CHEMICAL CO·Filed 1992·Granted Mar 8, 1994·9 cites·5 claims
- 2454US4839195ACoating blade for microtome and method for the preparation thereofSHINETSU CHEMICAL CO·Filed 1988·Granted Jun 13, 1989·15 cites·4 claims
- 2553US5435171AApparatus for automatically preparing solution of powdery product as specimen for use in viscosity measurementSHINETSU CHEMICAL CO·Filed 1993·Granted Jul 25, 1995·18 cites·14 claims
- 2651US4952131AMetal mold exchanging apparatus for use in injection molding machinesTOSHIBA MACHINE CO LTD·Filed 1989·Granted Aug 28, 1990·17 cites·4 claims
- 2744US6277519B1Method for making hydrogen storage alloy powder and electrode comprising the alloy powderSHINETSU CHEMICAL CO·Filed 1998·Granted Aug 21, 2001·9 cites·16 claims
- 2843US5248733AProcess for producing matte vinyl chloride polymersSHINETSU CHEMICAL CO·Filed 1991·Granted Sep 28, 1993·5 cites·3 claims
- 2942US2003185091A1Linear motor and electric injection molding machine using the sameTOSHIBA MACHINE CO LTD·Filed 2003·Application pending·0 cites
- 3040US6096144AMethod of producing hydrogen absorbing alloy powder, and electrode using hydrogen absorbing alloy powder produced by said methodSHINETSU CHEMICAL CO·Filed 1997·Granted Aug 1, 2000·7 cites·20 claims
- 3140US4972012APolyvinyl chloride resin compositionSHINETSU CHEMICAL CO·Filed 1989·Granted Nov 20, 1990·4 cites·2 claims
- 3239US5932034AMethod of producing hydrogen absorbing alloy powder, and electrode using hydrogen absorbing alloy powder produced by said methodSHINETSU CHEMICAL CO·Filed 1997·Granted Aug 3, 1999·8 cites·14 claims
- 3338US5360857APolymer scale preventive agent from naphthoquinone dyeSHINETSU CHEMICAL CO·Filed 1993·Granted Nov 1, 1994·3 cites·7 claims
- 3438US5354817APolymer scale preventive agent, polymerization vessel effective in preventing polymer scale deposition and process for preparation of polymerSHINETSU CHEMICAL CO·Filed 1992·Granted Oct 11, 1994·3 cites·3 claims
- 3536US5430113AProcess to prevent polymer scale adhesion using an aromatic compound and a salt of polyvinylsulfuric acidSHINETSU CHEMICAL CO·Filed 1994·Granted Jul 4, 1995·3 cites·17 claims
- 3636US5282680AApparatus for continuous polymerizationSHINETSU CHEMICAL CO·Filed 1993·Granted Feb 1, 1994·4 cites·3 claims
- 3735US5469752AApparatus for automatically inspecting powdery products for the presence of foreign substancesSHINETSU CHEMICAL CO·Filed 1993·Granted Nov 28, 1995·6 cites·7 claims
- 3834US4528336AMethod for preventing polymer scale deposition in polymerization of ethylenically unsaturated monomersSHINETSU CHEMICAL CO·Filed 1982·Granted Jul 9, 1985·2 cites·5 claims
- 3933US5968225AHydrogen storage alloy powder and an electrode comprising the sameSHINETSU CHEMICAL CO·Filed 1997·Granted Oct 19, 1999·3 cites·8 claims
- 4032US4607088AShaped body for gas separationSHIN ETSO CHEMICAL CO LTD·Filed 1985·Granted Aug 19, 1986·6 cites·7 claims
- 4124US4628070AVinyl chloride resin-based composition for floppy disc jacketSHINETSU CHEMICAL CO·Filed 1986·Granted Dec 9, 1986·1 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when Hajime Kitamura files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →