Inventor

Yasuo Sera

Inventor

Tokyo, JP

Overview

6→

Patents

2001–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 6 as inventor

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

H03Fprimary

H03FAmplifiers71%

C03CChemical composition of glasses, glazes or vitreous enamels14%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein14%

PatentTitleYear

10,927,039Chemically strengthened glass and production method for chemically strengthened glass2021 7,719,364'High frequency power amplifier'2010 6,856,196'Distortion compensator'2005 6,424,214'Strain error compensation amplifier'2002 6,417,731'Distortion-compensated amplifier device'2002 6,271,723'Distortion compensating device'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001Patents assigned to KOKUSAI ELECTRIC CO LTD (1)· patent assignee history

2001Based in Sendai, JP· patent location history

2002–2010Patents assigned to HITACHI INT ELECTRIC INC (4)· patent assignee history

2002–2021Based in Tokyo, JP· patent location history

2010Based in Kodaira, JP· patent location history

2021Patents assigned to AGC INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI INT ELECTRIC INC	4	2002–2010
AGC INC	1	2021
KOKUSAI ELECTRIC CO LTD	1	2001

Locations

Location	Patents	Span
Tokyo, JP	4	2002–2021
Kodaira, JP	1	2010
Sendai, JP	1	2001