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Inventor

Katsunori Kitazawa

Inventor
Takasaki, JP

Overview

9→
Patents
1994–2018
Patent span
Chemistry
Primary field (CPC C)

Patents· 9 as inventor

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

C09Dprimary
C09DCoating compositions, e.g. paints, varnishes or lacquers69%
B43KImplements for writing or drawing31%
PatentTitleYear
10,023,756Solid drawing material20189,090,784'Solid drawing material and solid drawing tool'20158,349,063'Pencil lead and production process for the same'20136,746,524'Process for producing sintered color pencil lead'20046,645,279'Baked colored pencil lead and process for producing the same'20035,911,814'Baked color pencil lead and process for producing the same'19995,645,629'Calcined pencil leads and method of manufacturing the same'19975,595,700'Non-baked color pencil leads and method for preparing same'19975,318,622'Non-baked color pencil leads and method for preparing same'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2018Patents assigned to MITSUBISHI PENCIL CO (9)· patent assignee history
1994Patents assigned to OSAKA GAS CO LTD (1)· patent assignee history
1994Based in Kanagawa, JP· patent location history
1997–2004Based in Takasaki, JP· patent location history
1997Based in Gunma, JP· patent location history
2013–2015Patents assigned to KITAZAWA KATSUNORI (2)· patent assignee history
2013Patents assigned to BANZAI SATORU (1)· patent assignee history
2013–2018Based in Fujioka, JP· patent location history
2015Patents assigned to MATSUMOTO MASAAKI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI PENCIL CO91994–2018
KITAZAWA KATSUNORIself22013–2015
BANZAI SATORU12013
MATSUMOTO MASAAKI12015
OSAKA GAS CO LTD11994
Locations
LocationPatentsSpan
Takasaki, JP41997–2004
Fujioka, JP32013–2018
Gunma, JP11997
Kanagawa, JP11994