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Inventor

Tomoharu Nishikawa

Inventor
Hirakata, JP

Overview

14→
Patents
1995–2012
Patent span
Physics
Primary field (CPC G)

Patents· 14 as inventor

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

G03Gprimary
G03GElectrography88%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
8,213,844'Developing device and image forming apparatus'20128,086,151'Developing roller specific for mono-component developing apparatus'20116,306,552'Carrier having specified bet specific surface area and dynamic current value and two-component developer thereof'20016,165,664'Two-component developing agent and image forming method using such a developing agent'20006,130,019'Binder carrier'20006,099,999'Binder carrier comprising magnetic particles and specific resin'20006,007,956'Carrier and developer for developing electrostatic latent images'19996,001,526'Binder carrier containing ethylenic unsaturated nitrile copolymer as binder resin'19995,962,175'Binder-type carrier and method of manufacturing same'19995,849,452'developing method using an oscillated electric field and including a specified toner and carrier'19985,834,152'Carrier and developer for electrophotographic latent image development, and image forming method using same'19985,736,287'Development method'19985,689,781'Carrier for electrostatic latent image developing'19975,472,817'Carrier for development of electrostatic latent images'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2001Patents assigned to MINOLTA CO LTD (12)· patent assignee history
1995–1999Based in Osaka, JP· patent location history
1998–2012Based in Hirakata, JP· patent location history
2011–2012Patents assigned to KONICA MINOLTA BUSINESS TECH (2)· patent assignee history
2011–2012Patents assigned to NISHIKAWA TOMOHARU (2)· patent assignee history
2011–2012Patents assigned to SAKAI TOSHIYUKI (2)· patent assignee history
2011Patents assigned to OKABE NORIKAZU (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MINOLTA CO LTD121995–2001
KONICA MINOLTA BUSINESS TECH22011–2012
NISHIKAWA TOMOHARUself22011–2012
SAKAI TOSHIYUKI22011–2012
OKABE NORIKAZU12011
Locations
LocationPatentsSpan
Hirakata, JP111998–2012
Osaka, JP31995–1999