Inventor

Kazuhiko Sakamoto

Inventor

Himeji, JP

Overview

1976–2019

Patent span

Chemistry

Primary field (CPC C)

Patents· 74 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Cprimary

C07CAcyclic or carbocyclic compounds28%

B01DSeparation12%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

G06FElectric digital data processing4%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds4%

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact4%

F24FAir-conditioning3%

Y10TTechnical subjects covered by former us classification3%

B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids2%

PatentTitleYear

10,294,315Polyacrylic acid (salt)-based water absorbent resin and method for producing same2019 9,187,579'Particle-shaped water absorbing agent and method for producing the same'2015 8,859,809'Device and process for crystallizing (meth)acrylic acid'2014 8,846,977'Crystallization unit for acrylic acid and method for crystallization of acrylic acid using the same'2014 8,704,000'Method for crystallizing (meth)acrylic acid and method for regulating content of polymerization inhibitor in product (meth)acrylic acid'2014 8,680,331'Process for production of (meth)acrylic acid'2014 8,680,330'Process for producing (meth) acrylic acid'2014 8,625,099'Particle concentration measuring device'2014 8,426,640'Method for producing acrylic acid, and method for producing hydrophilic resin and method for producing water-absorbing resin using production method thereof'2013 8,278,481'Method for producing (meth)acrylic acid'2012 7,977,503'Polymerization inhibition method'2011 7,855,986'Communication terminal and method for handling power off time'2010 7,541,490'Method for production of acrylic acid and apparatus for production of acrylic acid'2009 7,468,167'Method for starting up reactor and reactor system'2008 7,399,928'Flexible flat cable and method of manufacturing the same'2008 7,377,307'Vertical heat exchanger'2008 7,327,827'X-ray high voltage device'2008 7,319,167'Method for distilling (meth)acrylic acid and/or the ester thereof'2008 7,235,158'Perforated tray column without downcomer'2007 7,198,766'Method for production of acrylic acid and apparatus for production of acrylic acid'2007 7,060,230'Apparatus for treatment of waste gas'2006 7,048,834'Method for purification of acrylic acid'2006 7,049,366'Acrylic acid composition and its production process, and process for producing water-absorbent resin using this acrylic acid composition, and water-absorbent resin'2006 7,029,518'Method and apparatus for the preparation of clean gases'2006 7,005,544'Method for preventing polymerization in an acrylic acid manufacturing process'2006 6,996,803'Program generation method'2006 6,966,973'Apparatus and process for producing (meth)acrylic acid'2005 6,946,573'Method for starting up reactor and reactor system'2005 6,930,198'Method for production of unsaturated carboxylic ester'2005 6,911,064'Method and apparatus for the preparation of clean gases'2005 6,899,452'Apparatus and method for preparation and supply of polymerization inhibitor'2005 6,900,346'Method for decomposition of michael type adduct'2005 6,888,026'Method for producing (meth)acrylic acid'2005 6,870,066'Method for decomposition of Michael type adduct'2005 6,848,501'Method for preventing plate type heat exchanger from blockage'2005 6,831,195'Method for production of organic acid'2004 6,787,001'Method for distilling (meth) acrylic acid solution'2004 6,733,570'Method and apparatus for the preparation of clean gases'2004 6,667,419'Method for absorption of acrylic compound and apparatus therefor'2003 6,664,418'Method for inhibiting polymerization of a vinyl compound'2003 6,649,028'Column treating process and apparatus thereof'2003 6,632,329'Distillation apparatus and distilling method'2003 6,599,397'Method for preventing polymerization of (meth)acrylic acid and esters thereof and method for the production thereof'2003 6,581,637'Tank and a method for storing an easily polymerizable compound'2003 6,568,415'Storing device for easily polymerizable and coagulating liquid substance and method for pressure control thereof'2003 6,540,881'Method for refining (meth)acrylic acid'2003 6,476,162'Method for preventing easily polymerizing substance from polymerization and method for production of (meth) acrylic acid or ester thereof'2002 6,454,541'Method for transferring easily-polymerizable substance'2002 6,441,228'Apparatus and process for producing (meth)acrylic acid'2002 6,414,183'Method for handling waste oil'2002 6,407,287'Method for production of acrylic acid'2002 6,382,313'Heat exchanger for easily polymerizing substance-containing gas provided with gas distributing plate'2002 6,340,381'Method and apparatus for the preparation of clean gases'2002 6,330,713'Program generation method'2001 6,300,513'Method of stabilizing N-oxyl compounds in vinyl compounds'2001 6,117,184'Program generation method'2000 6,084,127'Method for recovering acrylic acid'2000 5,922,105'Method and apparatus for the preparation of clean gases'1999 5,903,762'Application execution method and system therefor'1999 5,845,119'Software development tool for combining software components/modules'1998 5,815,711'Apparatus and method for program generation'1998 5,785,821'Process for the production of acrylic acid'1998 5,504,243'Method for inhibiting polymerization of (meth) acrylic acid and esters thereof'1996 5,371,280'Polymerization inhibitor and inhibiting method for vinyl compound'1994 5,322,960'Method for inhibiting polymerization of (meth) acrylic acid and esters thereof'1994 5,315,037'Process for purification of acrylic acid'1994 5,225,000'Method for cleaning closed spaces with ultraviolet rays'1993 5,154,733'Photoelectron emitting member and method of electrically charging fine particles with photoelectrons'1992 5,060,805'Photoelectron emitting member'1991 4,921,359'Slide rail assembly'1990 4,654,368'Tri-organotin silatrane derivatives and pesticidal compositions, fungicides or antifouling agents comprising said compounds as active ingredients'1987 4,565,031'Rail arrangement for flush sliding door panels'1986 4,526,932'Antifouling agent'1985 3,945,972'Curable epoxy resin composition comprising an epoxy resin and a reactive diluent'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2006Patents assigned to EBARA RES CO LTD (8)· patent assignee history

1991–2005Based in Saitama, JP· patent location history

1994–2019Patents assigned to NIPPON CATALYTIC CHEM IND (48)· patent assignee history

1994–2014Based in Himeji, JP· patent location history

1994–2019Based in Hyogo, JP· patent location history

1998–2006Patents assigned to HITACHI LTD (6)· patent assignee history

1998–2006Based in Kawasaki, JP· patent location history

2005–2008Based in Kobe, JP· patent location history

2012–2019Patents assigned to SAKAMOTO KAZUHIKO (10)· patent assignee history

2014Patents assigned to ISHII YOSHITAKE (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON CATALYTIC CHEM IND	48	1994–2019
SAKAMOTO KAZUHIKOself	10	2012–2019
EBARA RES CO LTD	8	1991–2006
HITACHI LTD	6	1998–2006
ISHII YOSHITAKE	5	2014

Locations

Location	Patents	Span
Himeji, JP	42	1994–2014
Kawasaki, JP	6	1998–2006
Saitama, JP	6	1991–2005
Hyogo, JP	5	1994–2019
Kobe, JP	3	2005–2008