Inventor

Hidetoshi Oka

Inventor

Osaka, JP

Overview

1993–2019

Patent span

Electricity

Primary field (CPC H)

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

H01Qprimary

H01QAntennas, i.e. radio aerials79%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form7%

C03CChemical composition of glasses, glazes or vitreous enamels7%

H05BElectric heating7%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1993–2015Patents assigned to NIPPON SHEET GLASS CO LTD (9)· patent assignee history

1993Based in Zama, JP· patent location history

1996–2005Based in Osaka, JP· patent location history

2004Patents assigned to ASAHI GLASS CO LTD (1)· patent assignee history

2004Patents assigned to FUJITSU TEN LTD (1)· patent assignee history

2004Patents assigned to KOJIMA PRESS KOGYO KK (1)· patent assignee history

2004Patents assigned to NIPPON SHEET GLASS COMPANY (1)· patent assignee history

2015Based in Tokyo, JP· patent location history

2019Based in Ibaraki, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations