Sei Nakahara

Person

Hyogo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Polyacrylic acid (salt) water-absorbent resin, production process t...
- Patent number 9,062,140
- Issue date Jun 23, 2015
- Nippon Shokubai Co., Ltd.
- Hirotama Fujimaru
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Reactor filled with solid particle and gas-phase catalytic oxidatio...
- Patent number 7,534,339
- Issue date May 19, 2009
- Nippon Shokubai Co., Ltd.
- Yukihiro Matsumoto
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for starting up reactor
- Patent number 7,326,810
- Issue date Feb 5, 2008
- Nippon Shokubai Co., Ltd.
- Harunori Hirao
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for production of (meth)acrylic acid by use of a shell-and-t...
- Patent number 7,326,811
- Issue date Feb 5, 2008
- Nippon Shokubai Co., Ltd.
- Tetsuji Mitsumoto
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Method for distilling (meth)acrylic acid and/or the ester thereof
- Patent number 7,319,167
- Issue date Jan 15, 2008
- Nippon Shokubai Co., Ltd.
- Sei Nakahara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for production of easily polymerizable substance and purific...
- Patent number 7,282,118
- Issue date Oct 16, 2007
- Nippon Shokubai Co., Ltd.
- Tetsuji Mitsumoto
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Shell-and-tube type heat exchanger and method for production of (me...
- Patent number 7,147,048
- Issue date Dec 12, 2006
- Nippon Shokubai Co., Ltd.
- Tetsuji Mitsumoto
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Method for purification of acrylic acid
- Patent number 7,048,834
- Issue date May 23, 2006
- Nippon Shokubai Co., Ltd.
- Yoshitake Ishii
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Acrylic acid composition and its production process, and process fo...
- Patent number 7,049,366
- Issue date May 23, 2006
- Nippon Shokubai Co., Ltd.
- Sei Nakahara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for producing polyacrylic acid
- Patent number 7,038,081
- Issue date May 2, 2006
- Nippon Shokubai Co., Ltd.
- Yukihiro Matsumoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Apparatus and process for producing (meth)acrylic acid
- Patent number 6,966,973
- Issue date Nov 22, 2005
- Nippon Shokubai Co., Ltd.
- Sei Nakahara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Packed column and polymerizable compound treating method using the...
- Patent number 6,891,061
- Issue date May 10, 2005
- Nippon Shokubai Co Ltd
- Takeshi Nishimura
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for preventing plate type heat exchanger from blockage
- Patent number 6,848,501
- Issue date Feb 1, 2005
- Nippon Shokubai Co., Ltd.
- Harunori Hirao
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Method for distilling (meth) acrylic acid solution
- Patent number 6,787,001
- Issue date Sep 7, 2004
- Nippon Shokubai Co Ltd
- Kazuhiko Sakamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Heat-exchanging method for easily polymerizable compound
- Patent number 6,736,200
- Issue date May 18, 2004
- Nippon Shokubai Co., Ltd.
- Kazuto Okazaki
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Method for production of (meth) acrylic acid and/or (meth)acrylic e...
- Patent number 6,695,928
- Issue date Feb 24, 2004
- Nippon Shokubai Co., Ltd.
- Sei Nakahara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for starting up distilling column
- Patent number 6,676,808
- Issue date Jan 13, 2004
- Nippon Shokubai Co., Ltd.
- Kei Hamamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for inhibiting polymerization of a vinyl compound
- Patent number 6,664,418
- Issue date Dec 16, 2003
- Nippon Shokubai Co., Ltd.
- Kazuhiko Sakamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing (meth)acrylic ester
- Patent number 6,660,881
- Issue date Dec 9, 2003
- Nippon Shokubai Co., Ltd.
- Hajime Matsumoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for mixing gases and apparatus therefor
- Patent number 6,657,079
- Issue date Dec 2, 2003
- Nippon Shokubai Co., Ltd.
- Tetsuji Mitsumoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for cooling heating grade heat exchanger in unsteady state
- Patent number 6,651,731
- Issue date Nov 25, 2003
- Nippon Shokubai Co., Ltd.
- Takeshi Nishimura
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Method for preparing (meth) acrylic acid ester
- Patent number 6,649,787
- Issue date Nov 18, 2003
- Nippon Shokubai Co., Ltd.
- Sei Nakahara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Column treating process and apparatus thereof
- Patent number 6,649,028
- Issue date Nov 18, 2003
- Nippon Shokubai Co., Ltd.
- Kazuhiko Sakamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for production of (meth) acrylic acid
- Patent number 6,642,414
- Issue date Nov 4, 2003
- Nippon Shokubai Co., Ltd.
- Tetsuji Mitsumoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for stopping purifying column
- Patent number 6,613,196
- Issue date Sep 2, 2003
- Nippon Shokubai Co., Ltd.
- Kei Hamamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preventing polymerization of (meth)acrylic acid and este...
- Patent number 6,599,397
- Issue date Jul 29, 2003
- Nippon Shokubai Co., Ltd.
- Kazuhiko Sakamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Storage tank for viscous oil containing easily polymerizable compounds
- Patent number 6,588,450
- Issue date Jul 8, 2003
- Nippon Shokubai Co., Ltd.
- Yuichi Ijiri
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Method for preventing effluent gas pipe from blocking
- Patent number 6,566,551
- Issue date May 20, 2003
- Nippon Shokubai Co., Ltd.
- Takeshi Nishimura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for refining (meth)acrylic acid
- Patent number 6,540,881
- Issue date Apr 1, 2003
- Nippon Shokubai Co., Ltd.
- Kazuhiko Sakamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Solid substance removing device
- Patent number 6,495,045
- Issue date Dec 17, 2002
- Nippon Shokubai Co., Ltd.
- Kei Hamamoto
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Polyacrylic Acid (Salt) Water-Absorbent Resin, Production Process T...
- Publication number 20080119626
- Publication date May 22, 2008
- Hirotama Fujimaru
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Shell-and-tube type heat exchanger and method for production of (me...
- Publication number 20070034363
- Publication date Feb 15, 2007
- NIPPON SHOKUBAI CO., LTD.
- Tetsuji Mitsumoto
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
Reactor filled with solid particle and gas-phase catalytic oxidatio...
- Publication number 20070003460
- Publication date Jan 4, 2007
- Yukihiro Matsumoto
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method for distilling (meth)acrylic acid and/or the ester thereof
- Publication number 20040230074
- Publication date Nov 18, 2004
- Sei Nakahara
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Acrylic acid composition and its production process, and process fo...
- Publication number 20040110914
- Publication date Jun 10, 2004
- Sei Nakahara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Method for producing polyacrylic acid
- Publication number 20030181621
- Publication date Sep 25, 2003
- Yukihiro Matsumoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process for treating wastes from acrylic acid and polyacrylic acid...
- Publication number 20030143143
- Publication date Jul 31, 2003
- Yukihiro Matsumoto
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
Method for preventing plate type heat exchanger from blockage
- Publication number 20030111216
- Publication date Jun 19, 2003
- Harunori Hirao
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
Shell-and-tube type heat exchanger and method for production of (me...
- Publication number 20030089491
- Publication date May 15, 2003
- Tetsuji Mitsumoto
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
Reactor filled with solid particle and gas-phase catalytic oxidatio...
- Publication number 20030006026
- Publication date Jan 9, 2003
- Yukihiro Matsumoto
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Column treating process and apparatus therefor
- Publication number 20020189927
- Publication date Dec 19, 2002
- NIPPON SHOKUBAI CO., LTD.
- Kazuhiko Sakamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Apparatus and process for producing (meth)acrylic acid
- Publication number 20020165407
- Publication date Nov 7, 2002
- Sei Nakahara
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for distilling (meth) acrylic acid solution
- Publication number 20020134660
- Publication date Sep 26, 2002
- Kazuhiko Sakamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for cooling heating grade heat exchanger in unsteady state
- Publication number 20020104644
- Publication date Aug 8, 2002
- Takeshi Nishimura
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Liquid withdrawing tray for purification column, purification colum...
- Publication number 20020098123
- Publication date Jul 25, 2002
- Hajime Matsumoto
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for starting up reactor
- Publication number 20020037488
- Publication date Mar 28, 2002
- Harunori Hirao
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for stopping purifying column
- Publication number 20020027067
- Publication date Mar 7, 2002
- Kei Hamamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for producing (meth)acrylic ester
- Publication number 20020022739
- Publication date Feb 21, 2002
- NIPPON SHOKUBAI CO., LTD.
- Hajime Matsumoto
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Solid substance removing device
- Publication number 20020008064
- Publication date Jan 24, 2002
- Kei Hamamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for starting up distilling column
- Publication number 20020008010
- Publication date Jan 24, 2002
- Kei Hamamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for preventing polymerization of (meth) acrylic acid and est...
- Publication number 20020002253
- Publication date Jan 3, 2002
- Kazuhiko Sakamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for production of easily polymerizable substance and purific...
- Publication number 20010030120
- Publication date Oct 18, 2001
- Tetsuji Mitsumoto
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Production process for hydroxyalkyl (meth)acrylate
- Publication number 20010025120
- Publication date Sep 27, 2001
- NIPPON SHOKUBAI CO., LTD.
- Yasuhiro Shingai
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Storage tank for viscous oil containing easily polymerizable compounds
- Publication number 20010018931
- Publication date Sep 6, 2001
- Yuichi Ijiri
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Method for producing acrylic acid
- Publication number 20010020111
- Publication date Sep 6, 2001
- Kouji Ueno
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for production of (meth) acrylic acid
- Publication number 20010016668
- Publication date Aug 23, 2001
- Tetsuji Mitsumoto
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for disposal of solid catalyst
- Publication number 20010006930
- Publication date Jul 5, 2001
- Sei Nakahara
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Heat-exchanging method for easily polymerizable compound
- Publication number 20010006104
- Publication date Jul 5, 2001
- NIPPON SHOKUBAI CO., LTD.
- Kazuto Okazaki
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Apparatus and process for producing (meth)acrylic acid
- Publication number 20010005763
- Publication date Jun 28, 2001
- NIPPON SHOKUBAI CO., LTD.
- Sei Nakahara
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for purification of acrylic acid
- Publication number 20010004960
- Publication date Jun 28, 2001
- NIPPON SHOKUBAI CO., LTD.
- Yoshitake Ishii
- C07 - ORGANIC CHEMISTRY

Sei Nakahara

Person

Patents Grantslast 30 patents

Polyacrylic acid (salt) water-absorbent resin, production process t...

Reactor filled with solid particle and gas-phase catalytic oxidatio...

Method for starting up reactor

Method for production of (meth)acrylic acid by use of a shell-and-t...

Method for distilling (meth)acrylic acid and/or the ester thereof

Method for production of easily polymerizable substance and purific...

Shell-and-tube type heat exchanger and method for production of (me...

Method for purification of acrylic acid

Acrylic acid composition and its production process, and process fo...

Method for producing polyacrylic acid

Apparatus and process for producing (meth)acrylic acid

Packed column and polymerizable compound treating method using the...

Method for preventing plate type heat exchanger from blockage

Method for distilling (meth) acrylic acid solution

Heat-exchanging method for easily polymerizable compound

Method for production of (meth) acrylic acid and/or (meth)acrylic e...

Method for starting up distilling column

Method for inhibiting polymerization of a vinyl compound

Process for producing (meth)acrylic ester

Method for mixing gases and apparatus therefor

Method for cooling heating grade heat exchanger in unsteady state

Method for preparing (meth) acrylic acid ester

Column treating process and apparatus thereof

Method for production of (meth) acrylic acid

Method for stopping purifying column

Method for preventing polymerization of (meth)acrylic acid and este...

Storage tank for viscous oil containing easily polymerizable compounds

Method for preventing effluent gas pipe from blocking

Method for refining (meth)acrylic acid

Solid substance removing device

Patents Applicationslast 30 patents

Polyacrylic Acid (Salt) Water-Absorbent Resin, Production Process T...

Shell-and-tube type heat exchanger and method for production of (me...

Reactor filled with solid particle and gas-phase catalytic oxidatio...

Method for distilling (meth)acrylic acid and/or the ester thereof

Acrylic acid composition and its production process, and process fo...

Method for producing polyacrylic acid

Process for treating wastes from acrylic acid and polyacrylic acid...

Method for preventing plate type heat exchanger from blockage

Shell-and-tube type heat exchanger and method for production of (me...

Reactor filled with solid particle and gas-phase catalytic oxidatio...

Column treating process and apparatus therefor

Apparatus and process for producing (meth)acrylic acid

Method for distilling (meth) acrylic acid solution

Method for cooling heating grade heat exchanger in unsteady state

Liquid withdrawing tray for purification column, purification colum...

Method for starting up reactor

Method for stopping purifying column

Process for producing (meth)acrylic ester

Solid substance removing device

Method for starting up distilling column

Method for preventing polymerization of (meth) acrylic acid and est...

Method for production of easily polymerizable substance and purific...

Production process for hydroxyalkyl (meth)acrylate

Storage tank for viscous oil containing easily polymerizable compounds

Method for producing acrylic acid

Method for production of (meth) acrylic acid

Method for disposal of solid catalyst

Heat-exchanging method for easily polymerizable compound

Apparatus and process for producing (meth)acrylic acid

Method for purification of acrylic acid