Inventor

Masayoshi Tsunekawa

Inventor

Tokyo, JP

Overview

11→

Patents

1983–2018

Patent span

Human necessities

Primary field (CPC A)

Patents· 11 as inventor

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

A61Kprimary

A61KPreparations for medical, dental or toiletry purposes32%

B64CAeroplanes21%

A61QSpecific use of cosmetics or similar toiletry preparations11%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium11%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations5%

B64DEquipment for fitting in or to aircraft5%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%

C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms5%

G01NInvestigating or analysing materials by determining their chemical or physical properties5%

PatentTitleYear

9,994,312Vertical take-off and landing aircraft2018 9,963,227Vertical take-off and landing aircraft2018 9,950,789Vertical take-off and landing aircraft2018 9,561,850'Vertical take-off and landing aircraft'2017 8,354,117'Preparation for oral cavity'2013 5,306,338'Dental restoration composition'1994 5,112,880'Light-curable orthodontic bracket adhesive'1992 4,783,491'Dental materials having X-ray contrastability'1988 4,442,239'Phosphate derivatives, process for producing phosphate derivatives and fillers for human hard tissues containing the same'1984 4,404,150'Cyclic pyrophosphate derivatives and their preparation'1983 4,397,944'Compositions for diagnosis of dental caries activity'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1994Patents assigned to SANKIN IND CO (5)· patent assignee history

1983–1994Based in Toyonaka, JP· patent location history

1984Based in Kawanishi, JP· patent location history

1992Patents assigned to GINGI PAK (1)· patent assignee history

1992Patents assigned to SANKIN KOGYO K K INDUSTRY LTD (1)· patent assignee history

1992Based in Camarillo, CA, US· patent location history

2013Patents assigned to NIPPON SHIKA YAKUHIN CO LTD (1)· patent assignee history

2013Based in Shimonoseki, JP· patent location history

2017–2018Patents assigned to IHI CORP (4)· patent assignee history

2017–2018Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SANKIN IND CO	5	1983–1994
IHI CORP	4	2017–2018
GINGI PAK	1	1992
NIPPON SHIKA YAKUHIN CO LTD	1	2013
SANKIN KOGYO K K INDUSTRY LTD	1	1992

Locations

Location	Patents	Span
Tokyo, JP	4	2017–2018
Toyonaka, JP	4	1983–1994
Shimonoseki, JP	1	2013
Camarillo, California, US	1	1992
Kawanishi, JP	1	1984