Inventor

Takehiko Okushima

Inventor

Tokyo, JP

Overview

6→

Patents

1986–2021

Patent span

Fixed constructions

Primary field (CPC E)

Patents· 6 as inventor

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

E04Fprimary

E04FFinishing work on buildings, e.g. stairs, floors45%

A61KPreparations for medical, dental or toiletry purposes9%

E04BGeneral building constructions9%

E05DHinges or suspension devices for doors, windows or wings9%

E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof9%

E06BFixed or movable closures for openings in buildings, vehicles, fences or like enclosures in general, e.g. doors, windows, blinds, gates9%

H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines9%

PatentTitleYear

10,881,610Orally disintegrating tablet2021 5,162,612'Closure plate for covering opening of floor panels'1992 5,072,557'Device for fixing floor panels'1991 4,996,804'Device and structure for supporting floor panels'1991 4,922,670'Free access floor and method of constructing the same'1990 4,593,493'Access door'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986Patents assigned to NAKA TECH LAB (1)· patent assignee history

1986Based in Yashio, JP· patent location history

1990Patents assigned to NAKA TECHNICAL LAB (1)· patent assignee history

1990Based in Saitama, JP· patent location history

1991–1992Patents assigned to NAKA CORP (3)· patent assignee history

1991–1992Based in Tokyo, JP· patent location history

2021Patents assigned to TOWA PHARMACEUTICAL CO LTD (1)· patent assignee history

2021Based in Kadoma, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NAKA CORP	3	1991–1992
NAKA TECH LAB	1	1986
NAKA TECHNICAL LAB	1	1990
TOWA PHARMACEUTICAL CO LTD	1	2021

Locations

Location	Patents	Span
Tokyo, JP	3	1991–1992
Kadoma, JP	1	2021
Saitama, JP	1	1990
Yashio, JP	1	1986