Inventor

Atsushi Ryokawa

Inventor

Ube, JP

Overview

8→

Patents

2004–2017

Patent span

Chemistry

Primary field (CPC C)

Patents· 8 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds14%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium14%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1014%

B08BCleaning in general10%

C01BNon-metallic elements10%

C09KMaterials for miscellaneous applications, not provided for elsewhere10%

C11DDetergent compositions10%

H01LSemiconductor devices10%

C09DCoating compositions, e.g. paints, varnishes or lacquers5%

C23CCoating metallic material5%

PatentTitleYear

9,748,092'Liquid chemical for forming protecting film'2017 9,691,603'Chemical for forming protective film'2017 9,228,120'Liquid chemical for forming protecting film'2016 8,680,308'Hafnium amide complex manufacturing method and hafnium-containing oxide film'2014 7,976,817'Method for production of iodine heptafluoride'2011 7,518,008'Processes for producing hafnium complexes'2009 7,319,158'Process for producing high-purity hafnium amide'2008 6,770,253'Process for producing silicon tetrafluoride'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2017Patents assigned to CENTRAL GLASS CO LTD (8)· patent assignee history

2004Based in Yamaguchi, JP· patent location history

2008–2017Based in Ube, JP· patent location history

2014–2017Patents assigned to RYOKAWA ATSUSHI (3)· patent assignee history

2014–2017Patents assigned to YAMADA SHUHEI (3)· patent assignee history

2016–2017Patents assigned to AKAMATSU YOSHINORI (2)· patent assignee history

2016–2017Patents assigned to ARATA SHINOBU (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CENTRAL GLASS CO LTD	8	2004–2017
RYOKAWA ATSUSHIself	3	2014–2017
YAMADA SHUHEI	3	2014–2017
AKAMATSU YOSHINORI	2	2016–2017
ARATA SHINOBU	2	2016–2017

Locations

Location	Patents	Span
Ube, JP	7	2008–2017
Yamaguchi, JP	1	2004