Inventor

Ryuji Takahashi

Inventor
Kanagawa, JP

Overview

13→
Patents
1976–2019
Patent span
Performing operations
Primary field (CPC B)

Patents· 13 as inventor

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

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry15%
C08JWorking-up8%
G11BInformation storage based on relative movement between record carrier and transducer8%
H05KPrinted circuits8%
Y10TTechnical subjects covered by former us classification8%
A23JProtein compositions for foodstuffs4%
A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for4%
A61KPreparations for medical, dental or toiletry purposes4%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations4%
B01DSeparation4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2004Patents assigned to SHOWA DENKO KK (4)· patent assignee history
1976–1984Based in Tokyo, JP· patent location history
1984Patents assigned to KAYABA INDUSTRY CO LTD (1)· patent assignee history
2002–2004Based in Kanagawa, JP· patent location history
2009–2010Patents assigned to FUNAI ELECTRIC CO (2)· patent assignee history
2009Patents assigned to KRACIE PHARMA LTD (1)· patent assignee history
2009–2010Based in Daito, JP· patent location history
2009Based in Takaoka, JP· patent location history
2011Patents assigned to KOIZUMI TAKESHI (1)· patent assignee history
2011–2019Based in Fukushima, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHOWA DENKO KK41976–2004
FUNAI ELECTRIC CO22009–2010
KAYABA INDUSTRY CO LTD11984
KOIZUMI TAKESHI12011
KRACIE PHARMA LTD12009
Locations
LocationPatentsSpan
Kanagawa, JP42002–2004
Fukushima, JP22011–2019
Daito, JP22009–2010
Tokyo, JP21976–1984
Takaoka, JP12009