Inventor · disambiguated record
Kenji Yajima
Also filed as: YAJIMA KENJI
38 granted patents·5 pending applications·173 citations·filing 1976–2022
96Inventor score
Files withNGK INSULATORS LTD28MITSUBISHI MATERIALS CORP4SEIKO INSTR & ELECTRONICS3YAJIMA KENJI3UCHIKAWA TETSUYA2
Top patents by PatentIndex Score
43 records- 0191US7014680B2Method for preparing DDR type zeolite membrane, DDR type zeolite membrane, and composite DDR type zeolite membrane, and method for preparation thereofNGK INSULATORS LTD·Filed 2005·Granted Mar 21, 2006·23 cites·20 claims
- 0287US11402314B2Method for inspecting separation membrane structure, method for manufacturing separation membrane module, and method for manufacturing separation membrane structureNGK INSULATORS LTD·Filed 2019·Granted Aug 2, 2022·2 cites·11 claims
- 0387US9901882B2DDR zeolite seed crystal, method for producing same, and method for producing DDR zeolite membraneNGK INSULATORS LTD·Filed 2016·Granted Feb 27, 2018·3 cites·10 claims
- 0477US7909917B2Porous structure with seed crystal-containing layer for manufacturing zeolite membrane, zeolite membrane, and method for manufacturing zeolite membraneNGK INSULATORS LTD·Filed 2007·Granted Mar 22, 2011·8 cites·8 claims
- 0577US7819944B2Method of dehydration, dehydrating apparatus, and membrane reactorNGK INSULATORS LTD·Filed 2008·Granted Oct 26, 2010·8 cites·6 claims
- 0676US6953493B2Method for preparing DDR type zeolite membrane, DDR type zeolite membrane, and composite DDR type zeolite membrane, and method for preparation thereofNGK INSULATORS LTD·Filed 2004·Granted Oct 11, 2005·29 cites·16 claims
- 0775US10618011B2Package, method for storing or transporting sub-nano membrane structure, and sub-nano membrane structureNGK INSULATORS LTD·Filed 2017·Granted Apr 14, 2020·1 cites·10 claims
- 0875US7510598B2Gas separating body and method for producing sameNGK INSULATORS LTD·Filed 2006·Granted Mar 31, 2009·6 cites·9 claims
- 0975US6783611B2Phosphorized copper anode for electroplatingMITSUBISHI MATERIALS CORP·Filed 2002·Granted Aug 31, 2004·14 cites·1 claims
- 1068US12458949B2Gas separation method and zeolite membraneNGK INSULATORS LTD·Filed 2022·Granted Nov 4, 2025·0 cites·6 claims
- 1167US6640876B2Method and apparatus for manufacturing copper and/or copper alloy ingot having no shrinkage cavity and having smooth surface without wrinklesMITSUBISHI MATERIALS CORP·Filed 2001·Granted Nov 4, 2003·5 cites·5 claims
- 1266US12478919B2Gas separation method and zeolite membraneNGK INSULATORS LTD·Filed 2022·Granted Nov 25, 2025·0 cites·8 claims
- 1364US12151216B2Zeolite membrane composite, method of producing zeolite membrane composite, and separation methodNGK INSULATORS LTD·Filed 2021·Granted Nov 26, 2024·0 cites·14 claims
- 1462US11857915B2Gas separation method and gas separatorNGK INSULATORS LTD·Filed 2021·Granted Jan 2, 2024·0 cites·12 claims
- 1562US11498035B2Zeolite membrane complex, method for producing zeolite membrane complex, and separation methodNGK INSULATORS LTD·Filed 2020·Granted Nov 15, 2022·0 cites·11 claims
- 1662US8778056B2Zeolite membrane and process for producing zeolite membraneUCHIKAWA TETSUYA·Filed 2012·Granted Jul 15, 2014·1 cites·16 claims
- 1761US5705125AWire for electric railwaysMITSUBISHI MATERIALS CORP·Filed 1994·Granted Jan 6, 1998·22 cites·18 claims
- 1861US2023114715A1Separation membrane complex and separation methodNGK INSULATORS LTD·Filed 2022·Application pending·0 cites
- 1961US2015010704A1Ddr zeolite seed crystal, method for producing same, and method for producing ddr zeolite membraneNGK INSULATORS LTD·Filed 2014·Application pending·0 cites
- 2060US5391243AMethod for producing wire for electric railwaysMITSUBISHI MATERIALS CORP·Filed 1993·Granted Feb 21, 1995·14 cites·74 claims
- 2158US11135553B2Porous support, method for manufacturing porous support, separation membrane structure, and method for manufacturing separation membrane structureNGK INSULATORS LTD·Filed 2018·Granted Oct 5, 2021·0 cites·2 claims
- 2254US10258933B2Zeolite membrane having oxygen eight-membered rings, method for manufacturing zeolite membrane and method for evaluating zeolite membrane having oxygen eight-membered ringsNGK INSULATORS LTD·Filed 2015·Granted Apr 16, 2019·0 cites·13 claims
- 2353US11229882B2Monolithic separation membrane structureNGK INSULATORS LTD·Filed 2018·Granted Jan 25, 2022·0 cites·5 claims
- 2452US11278848B2Honeycomb shaped porous ceramic body, manufacturing method for same, and honeycomb shaped ceramic separation membrane structureNGK INSULATORS LTD·Filed 2014·Granted Mar 22, 2022·0 cites·5 claims
- 2552US9853518B2Cantilevered-shaft electric motorHITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD·Filed 2012·Granted Dec 26, 2017·0 cites·10 claims
- 2652US8377838B2Method for production of DDR type zeolite membraneNGK INSULATORS LTD·Filed 2009·Granted Feb 19, 2013·0 cites·3 claims
- 2751US11872520B2Method for inspecting separation membrane module and method for manufacturing separation membrane moduleNGK INSULATORS LTD·Filed 2019·Granted Jan 16, 2024·0 cites·9 claims
- 2851US10232318B2Defect detection method for monolithic separation membrane structures, repair method, and monolithic separation membrane structuresNGK INSULATORS LTD·Filed 2015·Granted Mar 19, 2019·0 cites·12 claims
- 2951US9968891B2Ceramic separation membrane structure and method for producing sameNGK INSULATORS LTD·Filed 2015·Granted May 15, 2018·0 cites·7 claims
- 3051US5259300AStirrer for food and cooking methodSANGO CO LTD·Filed 1992·Granted Nov 9, 1993·19 cites·7 claims
- 3151US4135359AElectronic timepiece with the amending meansYAJIMA KENJI·Filed 1977·Granted Jan 23, 1979·9 cites·14 claims
- 3250US2015008180A1Honeycomb shaped porous ceramic body, manufacturing method for same, and honeycomb shaped ceramic separation membrane structureNGK INSULATORS LTD·Filed 2014·Application pending·0 cites
- 3349US2009011926A1Process for producing ddr type zeolite membraneNGK INSULATORS LTD·Filed 2008·Application pending·0 cites
- 3448US11219879B2Aluminophosphate-metal oxide bonded body and production method for sameNGK INSULATORS LTD·Filed 2015·Granted Jan 11, 2022·0 cites·18 claims
- 3548US10093547B2Method for producing DDR type zeolite crystals and method for producing DDR type zeolite membraneNGK INSULATORS LTD·Filed 2015·Granted Oct 9, 2018·0 cites·9 claims
- 3647US8545802B2Process for production of DDR-type zeoliteUCHIKAWA TETSUYA·Filed 2012·Granted Oct 1, 2013·0 cites·6 claims
- 3747US4219756AMounting structure of a quartz crystal unitSEIKO INSTR & ELECTRONICS·Filed 1978·Granted Aug 26, 1980·6 cites·3 claims
- 3847US2015008178A1Honeycomb shaped porous ceramic body, manufacturing method for same, and honeycomb shaped ceramic separation membrane structureNGK INSULATORS LTD·Filed 2014·Application pending·0 cites
- 3942US8263516B2Method for manufacturing a structure provided with DDR zeolite membraneYAJIMA KENJI·Filed 2010·Granted Sep 11, 2012·0 cites·6 claims
- 4041US9493362B2DDR-type zeolite powder, and process for the production of DDR-type zeolite powderYAJIMA KENJI·Filed 2011·Granted Nov 15, 2016·0 cites·7 claims
- 4140US8497223B2Process for the production of DDR-type zeolite membranesNIINO MAKIKO·Filed 2011·Granted Jul 30, 2013·0 cites·19 claims
- 4234US4088854AElectronic timepiece switch mechanism having substrate mounted pivoted contact and lever or cam actuatorSEIKO INSTR & ELECTRONICS·Filed 1976·Granted May 9, 1978·2 cites·7 claims
- 4331US4228647AClick mechanism of a timepieceSEIKO INSTR & ELECTRONICS·Filed 1978·Granted Oct 21, 1980·1 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →