Inventor

Yasuyuki Shindoh

Inventor

Sendai, JP

Overview

7→

Patents

1988–2010

Patent span

Electricity

Primary field (CPC H)

Patents· 7 as inventor

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

H04Nprimary

H04NPictorial communication, e.g. television25%

G03GElectrography17%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation17%

G05FSystems for regulating electric or magnetic variables8%

H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner8%

H03KPulse technique8%

H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses8%

H10DInorganic electric semiconductor devices8%

PatentTitleYear

7,755,791'Image processing apparatus and image forming apparatus'2010 6,271,730'Voltage-controlled oscillator including current control element'2001 6,075,404'Substrate biasing circuit and semiconductor integrated circuit device'2000 5,408,113'High sensitivity improved photoelectric imaging device with a high signal to noise ratio'1995 5,299,031'Image sensor and optical reading unit using the same'1994 4,792,510'Electrophotographic element with silicide treated porous Al.sub.2 O.sub.3 sublayer'1988 4,734,346'Photosensitive material for electrophotography'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2010Patents assigned to RICOH KK (7)· patent assignee history

1988–1995Patents assigned to RICOH GEN ELECTRON RES INST (3)· patent assignee history

1988Patents assigned to RICOH RES INST ELECTRONICS (1)· patent assignee history

1988–1994Based in Sendai, JP· patent location history

1995Based in Natori, JP· patent location history

2000–2001Based in Miyagi, JP· patent location history

2010Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH KK	7	1988–2010
RICOH GEN ELECTRON RES INST	3	1988–1995
RICOH RES INST ELECTRONICS	1	1988

Locations

Location	Patents	Span
Sendai, JP	3	1988–1994
Miyagi, JP	2	2000–2001
Tokyo, JP	1	2010
Natori, JP	1	1995