Inventor
Kazuhiko Amakawa
Inventor
Niigata, JP
Overview
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds50%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry19%
Y02PClimate change mitigation technologies in the production or processing of goods6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
B01DSeparation3%
C01BNon-metallic elements3%
C01CAmmonia3%
C01GCompounds containing metals not covered by subclasses c01d or c01f3%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds3%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
10,682,631Multimetal oxide compositions comprising Mo, Bi, Fe and Cu20209,695,099'Process for preparing acrylic acid'20179,540,305'Process for preparing acrylic acid using an alkali metal-free and alkaline earth metal-free zeolitic material'20179,446,390'Process for preparing acrylic acid using an aluminum-free zeolitic material'20168,119,556'Production method of primary amines and catalysts for producing primary amines'20127,915,452'Process for producing highly purified xyltlenediamine'20117,785,556'Method of recovering ammonia'20107,767,859'Production method of primary amines and catalysts for producing primary amines'20107,588,721'Method for storing xylylenediamine'20097,119,230'Process for production of xylylenediamine and/or cyanobenzylamine'20066,984,758'Purification of 1,3-bis(aminomethyl)cyclohexane by distillation'20066,894,192'Process for production of xylylenediamine'20056,881,864'Production method of xylylenediamine'20056,646,163'Method for producing high purity xylylenediamine'20036,509,490'Method of purifying isophthalonitrile'20036,476,269'Method for producing xylylenediamine'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2012Patents assigned to MITSUBISHI GAS CHEMICAL CO (12)· patent assignee history
2002–2012Based in Niigata, JP· patent location history
2010Based in Nigata, JP· patent location history
2012Patents assigned to AMAKAWA KAZUHIKO (1)· patent assignee history
2012Patents assigned to YAMAMOTO YOSHIAKI (1)· patent assignee history
2016–2020Patents assigned to BASF SE (4)· patent assignee history
2016–2017Based in Mannheim, DE· patent location history
2020Based in Ludwigshafen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI GAS CHEMICAL CO | 12 | 2002–2012 |
| BASF SE | 4 | 2016–2020 |
| AMAKAWA KAZUHIKOself | 1 | 2012 |
| YAMAMOTO YOSHIAKI | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Niigata, JP | 11 | 2002–2012 |
| Mannheim, DE | 3 | 2016–2017 |
| Ludwigshafen, DE | 1 | 2020 |
| Nigata, JP | 1 | 2010 |