Inventor

Keiichi Ishida

Inventor

Toyota, JP

Overview

21→

Patents

1983–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 21 as inventor

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

H04Nprimary

H04NPictorial communication, e.g. television14%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%

G01NInvestigating or analysing materials by determining their chemical or physical properties10%

Y10TTechnical subjects covered by former us classification10%

G11BInformation storage based on relative movement between record carrier and transducer7%

A47CChairs5%

B60NSeats specially adapted for vehicles5%

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

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems5%

H03MCoding5%

PatentTitleYear

10,925,919Agent for activating astrocyte glucose metabolism2021 10,211,718Power supply which starts or stops boosting based on an unbalanced state of the AC source2019 7,839,312'Coder'2010 7,817,864'Coding apparatus and decoding apparatus'2010 7,813,152'Power converter'2010 6,822,711'Liquid crystal display apparatus using polarizing element transmitting one of two polarizing components crossing at right angles and reflecting the other component'2004 6,690,879'Magnetic recording and reproducing apparatus of helical scan type'2004 6,233,281'Video signal processing apparatus, and video signal processing method'2001 5,991,109'Magnetic recording and reproducing apparatus with signal delay and selection'1999 5,510,897'Digital video signal recording apparatus and method'1996 5,331,639'Method and apparatus for frame phase conversion of signal having frame structure'1994 5,289,322'Data rearrangement processing apparatus for digital video signal recording apparatus'1994 4,830,434'Adjustable head rest device for vehicle'1989 4,807,931'Air-controlled lumbar support device'1989 4,690,456'Air bag assembly'1987 4,678,232'Headrest assembly for vehicles'1987 4,534,506'Thermopneumatic mechanism for opening and closing a radiator grille'1985 4,483,924'System for controlling a printer in a blood sugar analyzer'1984 4,436,812'Process of calibrating a blood sugar analyzing apparatus'1984 4,420,564'Blood sugar analyzer having fixed enzyme membrane sensor'1983 4,407,959'Blood sugar analyzing apparatus'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1984Patents assigned to FUJI ELECTRIC CO LTD (4)· patent assignee history

1983–1984Based in Tokyo, JP· patent location history

1985–1989Patents assigned to AISIN SEIKI (5)· patent assignee history

1985–1989Based in Toyota, JP· patent location history

1994–2004Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (5)· patent assignee history

1996–2001Based in Kobe, JP· patent location history

1999–2010Based in Hyogo, JP· patent location history

2010Patents assigned to PANASONIC CORP (2)· patent assignee history

2010–2019Patents assigned to TOSHIBA CARRIER CORP (2)· patent assignee history

2010–2019Based in Fuji, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
AISIN SEIKI	5	1985–1989
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	5	1994–2004
FUJI ELECTRIC CO LTD	4	1983–1984
PANASONIC CORP	2	2010
TOSHIBA CARRIER CORP	2	2010–2019

Locations

Location	Patents	Span
Toyota, JP	5	1985–1989
Hyogo, JP	4	1999–2010
Tokyo, JP	4	1983–1984
Fuji, JP	2	2010–2019
Kobe, JP	2	1996–2001