Inventor · disambiguated record
Akinobu Sakamoto
Also filed as: SAKAMOTO AKINOBU
9 granted patents·4 pending applications·57 citations·filing 1995–2019
84Inventor score
Top patents by PatentIndex Score
13 records- 0169US5616627APolypropylene resin composition, polypropylene resin foamed material and process for producing the sameSUMITOMO CHEMICAL CO·Filed 1995·Granted Apr 1, 1997·30 cites·10 claims
- 0267US2019312249A1Method for manufacturing separator rollSUMITOMO CHEMICAL CO·Filed 2019·Application pending·0 cites
- 0359US2017271640A1Separator roll and method for manufacturing sameSUMITOMO CHEMICAL CO·Filed 2017·Application pending·0 cites
- 0457US11491494B2Separator film conveyance device for nonaqueous electrolytic-solution secondary battery and method for manufacturing separator film for nonaqueous electrolytic-solution secondary batterySUMITOMO CHEMICAL CO·Filed 2018·Granted Nov 8, 2022·0 cites·14 claims
- 0556US6693140B2Container comprising foamed olefin resin and process for producing sameSUMITOMO CHEMICAL CO·Filed 2001·Granted Feb 17, 2004·3 cites·3 claims
- 0655US9861510B2Cervical orthosisREHABITECH CO LTD·Filed 2013·Granted Jan 9, 2018·4 cites·1 claims
- 0755US6878318B2Methods for producing multi-layer foamed sheetsSUMITOMO CHEMICAL CO·Filed 2002·Granted Apr 12, 2005·3 cites·6 claims
- 0847US10457520B2Film roll and method for producing film rollSUMITOMO CHEMICAL CO·Filed 2017·Granted Oct 29, 2019·0 cites·8 claims
- 0940US10301135B2Film winding device control method, film roll, film winding device, and film roll production methodSUMITOMO CHEMICAL CO·Filed 2017·Granted May 28, 2019·0 cites·8 claims
- 1040US6255237B1Laminated sheetSUMITOMO CHEMICAL CO·Filed 1999·Granted Jul 3, 2001·12 cites·15 claims
- 1139US2017187023A1Nonaqueous electrolyte secondary battery separatorSUMITOMO CHEMICAL CO·Filed 2016·Application pending·0 cites
- 1237US2007100014A1Polypropylene, polypropylene resin composition and foamed articleSUMITOMO CHEMICAL CO·Filed 2006·Application pending·0 cites
- 1334US6290884B1Process for producing uncrosslinked polypropylene-based resin foam sheets and uncrosslinked polypropylene-based resin foam sheetsSUMITOMO CHEMICAL CO·Filed 1999·Granted Sep 18, 2001·5 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when Akinobu Sakamoto 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 →