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Inventor

Yoshiyuki Ishiyama

Inventor
Kanagawa, JP

Overview

7→
Patents
2005–2020
Patent span
Physics
Primary field (CPC G)

Patents· 7 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer44%
H01PWaveguides22%
B41JTypewriters11%
H04BTransmission11%
H05KPrinted circuits11%
PatentTitleYear
10,675,868Liquid discharging device and drive waveform control method20208,692,628'High-frequency module'20148,581,673'Circuit module'20137,518,967'Position control method and device, and optical disk device'20097,391,682'Optical disk system with improved signal regulation capability'20087,239,590'Write power control method, write power control apparatus and information recording apparatus having the same'20076,967,913'Information processing method for achieving optimization of recording velocity'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2009Patents assigned to RICOH KK (4)· patent assignee history
2005–2020Based in Kanagawa, JP· patent location history
2013–2020Patents assigned to ISHIYAMA YOSHIYUKI (2)· patent assignee history
2013–2014Patents assigned to MURATA MANUFACTURING CO (2)· patent assignee history
2013Patents assigned to FURUTANI KOJI (1)· patent assignee history
2013–2014Based in Nagaokakyo, JP· patent location history
2020Patents assigned to HATANAKA SHINICHI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK42005–2009
ISHIYAMA YOSHIYUKIself22013–2020
MURATA MANUFACTURING CO22013–2014
FURUTANI KOJI12013
HATANAKA SHINICHI12020
Locations
LocationPatentsSpan
Kanagawa, JP52005–2020
Nagaokakyo, JP22013–2014