Inventor

Hiroshi Takahashi

Inventor

Tokyo, JP

Overview

8→

Patents

1989–2021

Patent span

Human necessities

Primary field (CPC A)

Patents· 8 as inventor

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

C07Dprimary

C07DHeterocyclic compounds35%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations29%

A61KPreparations for medical, dental or toiletry purposes12%

A61MDevices for introducing media into, or onto, the body12%

C07CAcyclic or carbocyclic compounds6%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%

PatentTitleYear

11,084,814Pyrido[3, 4-d]pyrimidine derivative and pharmaceutically acceptable salt thereof2021 10,124,004Pyrido[3,4-d]pyrimidine derivative and pharmaceutically acceptable salt thereof2018 6,242,445'Benzimidazole derivative'2001 6,211,175'Cardiac diseases improving method'2001 5,932,575'Cardiac diseases improving agents'1999 5,863,913'Aromatic compound and pharmaceutical composition'1999 5,026,350'Set of double needles for injecting liquid medicine'1991 4,846,799'Set of double needles for injecting liquid medicine'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1991Patents assigned to HAKKO ELECTRIC MACHINE WORKS C (2)· patent assignee history

1989–2021Based in Tokyo, JP· patent location history

1999–2001Patents assigned to KUREHA CHEMICAL IND CO LTD (4)· patent assignee history

1999–2001Based in Fukushima, JP· patent location history

1999–2001Based in Houya, JP· patent location history

2018–2021Patents assigned to TEIJIN PHARMA LTD (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KUREHA CHEMICAL IND CO LTD	4	1999–2001
HAKKO ELECTRIC MACHINE WORKS C	2	1989–1991
TEIJIN PHARMA LTD	2	2018–2021

Locations

Location	Patents	Span
Tokyo, JP	4	1989–2021
Fukushima, JP	2	1999–2001
Houya, JP	2	1999–2001