Assignee
ASAHI KASEI MEDICAL CO LTD
JP·58 granted patents·40 pending applications·267 citations·filing 2000–2025
Top patents by PatentIndex Score
98 records- 0185US7721898B2Coating material for leukocyte removal filter and the filterASAHI KASEI MEDICAL CO LTD·Filed 2002·Granted May 25, 2010·47 cites·7 claims
- 0282US11224871B2Phosphate adsorbing agent for blood processing, blood processing system and blood processing methodASAHI KASEI MEDICAL CO LTD·Filed 2018·Granted Jan 18, 2022·2 cites·15 claims
- 0377US7140496B2Multilayer microporous membraneASAHI KASEI MEDICAL CO LTD·Filed 2002·Granted Nov 28, 2006·22 cites·16 claims
- 0476US7459085B2Microporous hydrophilic membraneASAHI KASEI MEDICAL CO LTD·Filed 2003·Granted Dec 2, 2008·27 cites·18 claims
- 0576US7156240B2Filter for processing blood and process for producing the sameASAHI KASEI MEDICAL CO LTD·Filed 2002·Granted Jan 2, 2007·16 cites·8 claims
- 0675US10639405B2Adsorbent for removing histone and purification device for liquid derived from living organismASAHI KASEI MEDICAL CO LTD·Filed 2015·Granted May 5, 2020·3 cites·17 claims
- 0775US9526735B2Method for suppressing surgical site infection and column to be used for the methodASAHI KASEI MEDICAL CO LTD·Filed 2014·Granted Dec 27, 2016·2 cites·8 claims
- 0875US2023077172A1Blood treatment filterASAHI KASEI MEDICAL CO LTD·Filed 2022·Application pending·0 cites
- 0974US9809800B2Method for producing parvovirus having high infectivity titerASAHI KASEI MEDICAL CO LTD·Filed 2013·Granted Nov 7, 2017·2 cites·15 claims
- 1073US11801505B2Strong cation exchange chromatographic matrix and method for using sameASAHI KASEI MEDICAL CO LTD·Filed 2022·Granted Oct 31, 2023·0 cites·26 claims
- 1173US10675593B2Virus removal membraneASAHI KASEI MEDICAL CO LTD·Filed 2015·Granted Jun 9, 2020·2 cites·13 claims
- 1272US7592134B2Viral reduction method for plasma using a leukocyte-reduction filter and two virus-reduction filters of decreasing pore diametersASAHI KASEI MEDICAL CO LTD·Filed 2003·Granted Sep 22, 2009·11 cites·11 claims
- 1371US10232320B2Hollow-fiber membrane blood purification deviceASAHI KASEI MEDICAL CO LTD·Filed 2015·Granted Mar 19, 2019·2 cites·8 claims
- 1469US7087168B2Hollow fiber membrane for purifying bloodASAHI KASEI MEDICAL CO LTD·Filed 2002·Granted Aug 8, 2006·19 cites·10 claims
- 1568US11964084B2Phosphate adsorbing agent for blood processing, blood processing system and blood processing methodASAHI KASEI MEDICAL CO LTD·Filed 2022·Granted Apr 23, 2024·0 cites·21 claims
- 1668US11806461B2Blood purification device and method for producing sameASAHI KASEI MEDICAL CO LTD·Filed 2019·Granted Nov 7, 2023·1 cites·11 claims
- 1768US7655146B2Method for filtering blood or blood components using leukocyte-removing filter and filter deviceASAHI KASEI MEDICAL CO LTD·Filed 2007·Granted Feb 2, 2010·10 cites·12 claims
- 1867US7591954B2Method for removing leukocytes, leukocyte-removing filter and utilization thereofASAHI KASEI MEDICAL CO LTD·Filed 2003·Granted Sep 22, 2009·35 cites·10 claims
- 1965US11491446B2Virus removal membrane and method for manufacturing virus removal membraneASAHI KASEI MEDICAL CO LTD·Filed 2017·Granted Nov 8, 2022·0 cites·9 claims
- 2065US2023026019A1Virus removal membrane and method for manufacturing virus removal membraneASAHI KASEI MEDICAL CO LTD·Filed 2022·Application pending·0 cites
- 2164US12364954B2Porous membraneASAHI KASEI MEDICAL CO LTD·Filed 2021·Granted Jul 22, 2025·0 cites·14 claims
- 2264US9421320B2Blood processing filter and the method for manufacturing the sameASAHI KASEI MEDICAL CO LTD·Filed 2014·Granted Aug 23, 2016·2 cites·8 claims
- 2364US2024287469A1Virus recovery methodASAHI KASEI MEDICAL CO LTD·Filed 2022·Application pending·0 cites
- 2463US11850345B2Beads for blood processingASAHI KASEI MEDICAL CO LTD·Filed 2021·Granted Dec 26, 2023·0 cites·15 claims
- 2563US11504460B2Blood treatment filterASAHI KASEI MEDICAL CO LTD·Filed 2020·Granted Nov 22, 2022·0 cites·17 claims
- 2662US7635513B1Heat resistant microporous filmASAHI KASEI MEDICAL CO LTD·Filed 2000·Granted Dec 22, 2009·9 cites·15 claims
- 2762US2025205651A1Porous membraneASAHI KASEI MEDICAL CO LTD·Filed 2025·Application pending·0 cites
- 2861US10188782B2Blood processing filter and blood processing methodASAHI KASEI MEDICAL CO LTD·Filed 2014·Granted Jan 29, 2019·2 cites·23 claims
- 2960US7641794B2Blood processing filterASAHI KASEI MEDICAL CO LTD·Filed 2001·Granted Jan 5, 2010·22 cites·14 claims
- 3059US10029216B2Hollow-fiber membrane blood purification deviceASAHI KASEI MEDICAL CO LTD·Filed 2014·Granted Jul 24, 2018·1 cites·17 claims
- 3157US11850346B2Beads for blood processingASAHI KASEI MEDICAL CO LTD·Filed 2019·Granted Dec 26, 2023·0 cites·17 claims
- 3257US11246970B2Blood processing filterASAHI KASEI MEDICAL CO LTD·Filed 2017·Granted Feb 15, 2022·0 cites·16 claims
- 3357US10842927B2Blood treatment filterASAHI KASEI MEDICAL CO LTD·Filed 2015·Granted Nov 24, 2020·0 cites·16 claims
- 3457US9643174B2Temperature responsive adsorbent having a strong cation exchange group and method for producing the sameASAHI KASEI MEDICAL CO LTD·Filed 2014·Granted May 9, 2017·0 cites·7 claims
- 3557US2024175098A1Viral clearance test methodASAHI KASEI MEDICAL CO LTD·Filed 2022·Application pending·0 cites
- 3656US2024001309A1Porous hollow-fiber membrane and method for testing integrityASAHI KASEI MEDICAL CO LTD·Filed 2021·Application pending·0 cites
- 3755US12290622B2Closed circulation system test apparatus for blood purification device using whole bloodASAHI KASEI MEDICAL CO LTD·Filed 2021·Granted May 6, 2025·0 cites·6 claims
- 3855US7217365B2Blood filtration methodsASAHI KASEI MEDICAL CO LTD·Filed 2002·Granted May 15, 2007·10 cites·11 claims
- 3954US2023099894A1Blood processing filterASAHI KASEI MEDICAL CO LTD·Filed 2021·Application pending·0 cites
- 4053US12274985B2Porous membraneASAHI KASEI MEDICAL CO LTD·Filed 2020·Granted Apr 15, 2025·0 cites·2 claims
- 4153US2023103302A1Method for evaluating viral clearance capabilityASAHI KASEI MEDICAL CO LTD·Filed 2021·Application pending·0 cites
- 4252US11590452B2Method for filtering protein-containing liquidASAHI KASEI MEDICAL CO LTD·Filed 2018·Granted Feb 28, 2023·0 cites·29 claims
- 4352US10308678B2Cation exchange chromatographic support and method for using sameASAHI KASEI MEDICAL CO LTD·Filed 2015·Granted Jun 4, 2019·0 cites·30 claims
- 4451US9956334B2Separation membrane for blood processing and blood processing apparatus having the membrane installed thereinASAHI KASEI MEDICAL CO LTD·Filed 2012·Granted May 1, 2018·1 cites·13 claims
- 4551US7438821B2Liquid filtering method and filtering systemASAHI KASEI MEDICAL CO LTD·Filed 2002·Granted Oct 21, 2008·9 cites·7 claims
- 4651US2023138912A1Blood purification system, controlling method, controlling program, learning device, and learning methodASAHI KASEI MEDICAL CO LTD·Filed 2021·Application pending·0 cites
- 4751US2023139818A1Blood purification system, controlling method, controlling program, learning device, and learning methodASAHI KASEI MEDICAL CO LTD·Filed 2021·Application pending·0 cites
- 4851US2018326136A1Phosphate adsorbing agent for blood processing, blood processing system and blood processing methodASAHI KASEI MEDICAL CO LTD·Filed 2016·Application pending·0 cites
- 4951US2019217285A1Strong cation exchange chromatographic matrix and method for using sameASAHI KASEI MEDICAL CO LTD·Filed 2017·Application pending·0 cites
- 5049US12383884B2Polyamide medium for purifying protein-containing solution and method for producing polyamide mediumASAHI KASEI MEDICAL CO LTD·Filed 2020·Granted Aug 12, 2025·0 cites·6 claims
Showing the top 50 of 98 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when ASAHI KASEI MEDICAL CO LTD files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →