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Inventor

Kunihiro Yamanaka

Inventor
Kanagawa, JP

Overview

13→
Patents
1990–2019
Patent span
Performing operations
Primary field (CPC B)

Patents· 13 as inventor

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

B41Jprimary
B41JTypewriters71%
H05KPrinted circuits12%
H04MTelephonic communication6%
H04NPictorial communication, e.g. television6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
10,457,072Processing object reforming apparatus, printing apparatus, processing object reforming system, printing system, and manufacturing method of printed matter20199,487,026'Printing apparatus, printing system, and manufacturing method of printed matter'20168,911,062'Liquid-jet head and image forming apparatus'20148,894,185'Liquid ejection head, ink cartridge, and image forming apparatus'20148,657,401'Image forming apparatus with ink-jet printing system'20148,500,240'Image forming apparatus, method of suctioning liquid from nozzles of recording head and computer readable information recording medium'20138,197,048'Image forming apparatus'20128,057,001'Imaging apparatus'20117,992,967'Liquid drop ejection head and image forming apparatus'20117,621,608'Image forming apparatus having improved capability for maintaining ink delivery'20097,533,957'Image forming apparatus'20096,568,794'Ink-jet head, method of producing the same, and ink-jet printing system including the same'20034,922,546'Radio audio/facsimile communication device'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2009Patents assigned to RICOH KK (4)· patent assignee history
1990Based in Sagamihara, JP· patent location history
2003–2019Based in Kanagawa, JP· patent location history
2011–2016Patents assigned to RICOH CO LTD (8)· patent assignee history
2011–2019Patents assigned to YAMANAKA KUNIHIRO (8)· patent assignee history
2016–2019Patents assigned to HIROSE YOHJI (2)· patent assignee history
2016–2019Patents assigned to NAKAI JUNJI (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD82011–2016
YAMANAKA KUNIHIROself82011–2019
RICOH KK41990–2009
HIROSE YOHJI22016–2019
NAKAI JUNJI22016–2019
Locations
LocationPatentsSpan
Kanagawa, JP122003–2019
Sagamihara, JP11990