Inventor · disambiguated record
Tsutaki Katayama
Also filed as: KATAYAMA TSUTAKI
11 granted patents·10 pending applications·88 citations·filing 2009–2021
87Inventor score
Top patents by PatentIndex Score
21 records- 0195US9284432B2Method for degrading a readily-degradable resin compositionTOYO SEIKAN KAISHA LTD·Filed 2014·Granted Mar 15, 2016·27 cites·5 claims
- 0295US8846355B2Method for degrading biodegradable resinTOYO SEIKAN KAISHA LTD·Filed 2013·Granted Sep 30, 2014·30 cites·7 claims
- 0391US8501445B2Method for producing oligomer and/or monomer by degrading biodegradable resinYOSHIKAWA SEISHI·Filed 2009·Granted Aug 6, 2013·28 cites·8 claims
- 0482US9650489B2Method for degrading biodegradable resinTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2014·Granted May 16, 2017·2 cites·22 claims
- 0575US2022033572A1Polyoxalate copolymer and method of producing the sameTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2021·Application pending·0 cites
- 0670US10487620B2Method of extracting underground resources and hydrolysis-blocking agent for use in the methodTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2015·Granted Nov 26, 2019·1 cites·15 claims
- 0769US9926425B2Method for degrading biodegradable resinTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2017·Granted Mar 27, 2018·0 cites·4 claims
- 0863US12084541B2Polylactic acid solid composition and method for producing the sameTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2020·Granted Sep 10, 2024·0 cites·2 claims
- 0960US2019055348A1Polyoxalate copolymer and method of producing the sameTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2017·Application pending·0 cites
- 1059US10385171B2Powder comprising hydrolyzable resin particlesTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2015·Granted Aug 20, 2019·0 cites·6 claims
- 1154US2021269587A1Polylactic acid copolymer and method of producing the sameTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2019·Application pending·0 cites
- 1253US2016208062A1Biodegradable resin composition having a porous structure and method for surface treatment of sameTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2014·Application pending·0 cites
- 1347US10040983B2Dispersion solution for drilling and method of extracting underground resources using the dispersion solutionTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2013·Granted Aug 7, 2018·0 cites·6 claims
- 1445US10626246B2Polylactic acid compositionTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2015·Granted Apr 21, 2020·0 cites·9 claims
- 1543US11104840B2Method of extracting underground resources by using hydrolysable particlesTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2016·Granted Aug 31, 2021·0 cites·2 claims
- 1643US2022213316A1Organic solvent dispersion of hydrolysable polymerTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2020·Application pending·0 cites
- 1743US2013184415A1Biodegradable resin compositionYOSHIKAWA SEISHI·Filed 2011·Application pending·0 cites
- 1841US2017210873A1Method of decomposing ester resinsTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2015·Application pending·0 cites
- 1940US2013274373A1Biodegradable resin compositionYOSHIKAWA SEISHI·Filed 2012·Application pending·0 cites
- 2039US2017342206A1Polyoxalate copolymerTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2015·Application pending·0 cites
- 2138US2017015888A1Formed body of resin to be thrown into waterTOYO SEIKAN GROUP HOLDINGS LTD·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →