Inventor
UMEMURA KAZUO
JP22 patents
⚠️ This page may combine multiple inventors who share the name “UMEMURA KAZUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI GLASS CO LTD
13 patentsUS6228240B1May 8, 2001
Method and apparatus for producing deionized water
ASAHI GLASS CO LTD63 citations95
US5961805AOct 5, 1999
Method and apparatus for producing deionized water
ASAHI GLASS CO LTD61 citations95
US5759373AJun 2, 1998
Porous ion exchanger and method for producing deionized water
ASAHI GLASS CO LTD83 citations94
US5401408AMar 28, 1995
Bipolar membrane
ASAHI GLASS CO LTD67 citations92
US5397445AMar 14, 1995
Method for producing an acid and/or alkali metal hydroxide
ASAHI GLASS CO LTD40 citations92
US6338784B1Jan 15, 2002
Apparatus for producing deionized water
ASAHI GLASS CO LTD19 citations83
US6071397AJun 6, 2000
Apparatus for producing deionized water
ASAHI GLASS CO LTD16 citations83
US8349155B2Jan 8, 2013
Cation exchange membrane, production process thereof and electrolytic cell using the same
ASAHI GLASS CO LTD12 citations82
US5948826ASep 7, 1999
Heterogeneous ion exchange membrane and process for its production
ASAHI GLASS CO LTD12 citations74
US8377998B2Feb 19, 2013
Process for producing fluoropolymer, and fluorinated ion exchange membrane
ASAHI GLASS CO LTD6 citations71
US9624329B2Apr 18, 2017
Process for producing fluorinated copolymer
ASAHI GLASS CO LTD3 citations68
US9682370B2Jun 20, 2017
Process for producing fluorinated copolymer
ASAHI GLASS CO LTD0 citations39
US9604180B2Mar 28, 2017
Fluorinated copolymer and ion exchange membrane
ASAHI GLASS CO LTD0 citations39