Inventor · disambiguated record
Akihiko Shimizu
Also filed as: KATO YOSHIO · SHIMIZU AKIHIKO · TAKAHASHI KENJI
83 granted patents·9 pending applications·1,375 citations·filing 1974–2022
99Inventor score
Files withTOYO SODA MFG CO LTD28RICOH KK19INOUE JAPAX RES10MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6JAPAX INC4
Top patents by PatentIndex Score
92 records- 0195US5737307AMethod for recording-regenerating information from optical recording mediumsRICOH KK·Filed 1995·Granted Apr 7, 1998·76 cites·6 claims
- 0295US4608476ARetraction control for 3D-path controlled generic electrode electroerosionJAPAX INC·Filed 1983·Granted Aug 26, 1986·36 cites·11 claims
- 0395US3962069ASystem for treating sludgeINOUE JAPAX RES·Filed 1974·Granted Jun 8, 1976·50 cites·9 claims
- 0494US6487149B1Optical recording and reproducing methods for optical diskRICOH KK·Filed 1999·Granted Nov 26, 2002·88 cites·22 claims
- 0594US5885063AVariable capacity scroll compressorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Mar 23, 1999·80 cites·12 claims
- 0694US5638354AOptical information recording mediumRICOH KK·Filed 1994·Granted Jun 10, 1997·50 cites·9 claims
- 0794US4603391AFeed-deviation preventive numerically controlled EDM method and apparatusINOUE JAPAX RESEARCH INC AND J·Filed 1983·Granted Jul 29, 1986·39 cites·18 claims
- 0892US7878890B2Game program, game device, and game methodKONAMI DIGITAL ENTERTAINMENT·Filed 2006·Granted Feb 1, 2011·26 cites·9 claims
- 0992US4152570ADrive assembly for multi-directional lateral displacement between tool and workpieceINOUE JAPAX RES·Filed 1977·Granted May 1, 1979·51 cites·8 claims
- 1091US4430180AApparatus for and method of electroerosively drilling a thin hole in a workpieceJAPAX INC·Filed 1981·Granted Feb 7, 1984·27 cites·16 claims
- 1188US6379123B1Capacity control scroll compressorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Apr 30, 2002·50 cites·12 claims
- 1287US7126897B2Multi-level information recording apparatus, multi-level information recording method, multi-level information recording medium and multi-level information recording-reproducing apparatusRICOH KK·Filed 2003·Granted Oct 24, 2006·25 cites·4 claims
- 1386US6428286B1Capacity control scroll compressorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Aug 6, 2002·45 cites·8 claims
- 1485US5597296AScroll compressor having a check valve received in a stationary scroll member recessMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Jan 28, 1997·36 cites·8 claims
- 1584US5926446AOptical information recording medium and a method of tracking servo for optical information recording mediumRICOH KK·Filed 1997·Granted Jul 20, 1999·43 cites·7 claims
- 1684US4629854ATW-electroerosion with means for regulating flushing liquid in cutting slotINOUE JAPAX RES·Filed 1984·Granted Dec 16, 1986·20 cites·40 claims
- 1782US4108804AProcess for preparation of chromatography solid supports comprising a nucleic acid base-epoxy group containing porous gelSEITA TORU·Filed 1976·Granted Aug 22, 1978·33 cites·9 claims
- 1881US5220556AOptical disk with identification phase-encoded areaRICOH KK·Filed 1990·Granted Jun 15, 1993·29 cites·2 claims
- 1979US5344683AOptical information recording medium with phase grooves in land portions of information recording areasRICOH KK·Filed 1993·Granted Sep 6, 1994·26 cites·1 claims
- 2079US4200538AProcess for preparing cation-exchange membraneTOYO SODA MFG CO LTD·Filed 1977·Granted Apr 29, 1980·25 cites·10 claims
- 2179US4081419AProcess for producing a polymer emulsionTOYO SODA MFG CO LTD·Filed 1976·Granted Mar 28, 1978·20 cites·6 claims
- 2276US4132682AProcess for preparing cation-exchange membraneTOYO SODA MFG CO LTD·Filed 1977·Granted Jan 2, 1979·17 cites·11 claims
- 2373US7082091B2Information reproducing method judging a multivalued level of a present cell by referring to judged multivalued levels of a preceding cell and an ensuing cellRICOH KK·Filed 2002·Granted Jul 25, 2006·7 cites·13 claims
- 2473US7027375B2Multi-value data recording and reproducing deviceRICOH KK·Filed 2003·Granted Apr 11, 2006·9 cites·26 claims
- 2573USD375940SFuse-link for automobilesPACIFIC ENG·Filed 1995·Granted Nov 26, 1996·18 cites·1 claims
- 2672US6714230B2Method for optically recording information on an optically re-writable information mediumRICOH KK·Filed 2002·Granted Mar 30, 2004·7 cites·38 claims
- 2772US4031302AProcess for preparing granular rubberTOYO SODA MFG CO LTD·Filed 1975·Granted Jun 21, 1977·21 cites·6 claims
- 2872US4013580AMethod of preventing formation of popcorn chloroprene polymerTOYO SODA MFG CO LTD·Filed 1975·Granted Mar 22, 1977·8 cites·5 claims
- 2970US4439659AElectrode feed system in electrical machining, capable of quick-response electrode retraction and reciprocationJAPAX INC·Filed 1982·Granted Mar 27, 1984·13 cites·12 claims
- 3070US4136237AProcess for preparing cation-exchange membrane by polymerizing lactone ring containing unsaturated monomer in the presence of fluorinated polymerTOYO SODA MFG CO LTD·Filed 1977·Granted Jan 23, 1979·13 cites·8 claims
- 3169US6987720B2Information recording and/or reproducing apparatus, information recording and/or reproducing method, and phase-change recording medium for use in the apparatus and the methodsRICOH KK·Filed 2001·Granted Jan 17, 2006·6 cites·12 claims
- 3269US5745024AFuse element for slow-blow fusesPACIFIC ENG·Filed 1996·Granted Apr 28, 1998·22 cites·5 claims
- 3369US4054547APolymerization of chloropreneTOYO SODA MFG CO LTD·Filed 1975·Granted Oct 18, 1977·13 cites·5 claims
- 3468US6608546B2Fuse and fuse supportPACIFIC ENGINEERING CORP·Filed 2001·Granted Aug 19, 2003·14 cites·16 claims
- 3568US4558977ANC Method and system for machining a 3D contour in a workpieceINOUE JAPAX RES·Filed 1982·Granted Dec 17, 1985·25 cites·10 claims
- 3667US6888479B2Data processing method, circuit, and apparatus with increased accuracyRICOH KK·Filed 2002·Granted May 3, 2005·15 cites·79 claims
- 3767US4128706ACarrier for liquid chromatographyTOYO SODA MFG CO LTD·Filed 1977·Granted Dec 5, 1978·12 cites·2 claims
- 3866US10431411B2Fuse with a thermomechanical compensation elementPACIFIC ENG CORPORATION·Filed 2013·Granted Oct 1, 2019·2 cites·9 claims
- 3966US4307279AElectrode assembly for travelling-wire electroerosion machineINOUE JAPAX RES·Filed 1978·Granted Dec 22, 1981·17 cites·20 claims
- 4065US4333000AApparatus for making hollow extrusion diesJAPAX INC·Filed 1980·Granted Jun 1, 1982·12 cites·7 claims
- 4165US4252925AAnionic polymerization processTOYO SODA MFG CO LTD·Filed 1979·Granted Feb 24, 1981·15 cites·15 claims
- 4264US9234280B2Epitaxial growth apparatus and epitaxial growth methodSHIMIZU AKIHIKO·Filed 2012·Granted Jan 12, 2016·2 cites·5 claims
- 4364US4194999AProcess for producing powdery rubberTOYO SODA MFG CO LTD·Filed 1977·Granted Mar 25, 1980·18 cites·6 claims
- 4464US4174426AMethod of improving characteristic of cation-exchange membrane by swelling in water miscible organic solvent and treating further with hydrochloric acidTOYO SODA MFG CO LTD·Filed 1978·Granted Nov 13, 1979·14 cites·10 claims
- 4563US4751361AAutomatic TW electroerosion machining systemINOUE JAPAX RES·Filed 1986·Granted Jun 14, 1988·17 cites·21 claims
- 4663US4626645AAutomatic TW electroerosion machining systemINOUE JAPAX RES·Filed 1984·Granted Dec 2, 1986·15 cites·1 claims
- 4761US2009325697A1Game program, game apparatus, and game control methodKONAMI DIGITAL ENTERTAINMENT·Filed 2009·Application pending·0 cites
- 4860US12334293B2Electric circuit cut-off devicePACIFIC ENG CORPORATION·Filed 2021·Granted Jun 17, 2025·0 cites·11 claims
- 4960US7420905B2Information reproducing method judging a multivalued level of a present cell by referring to judged multivalued levels of a preceding cell and an ensuing cellRICOH KK·Filed 2007·Granted Sep 2, 2008·0 cites·17 claims
- 5060US4565546ACondensation product and use thereof as dispersant for pitch in water slurryNIKKA CHEMICAL INDUSTRY CO·Filed 1984·Granted Jan 21, 1986·14 cites·20 claims
Showing the top 50 of 92 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →