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Inventor

Shuji Ichikawa

Inventor
Yokohama, JP

Overview

27→
Patents
1987–2017
Patent span
Chemistry
Primary field (CPC C)

Patents· 27 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 lacquers25%
B43KImplements for writing or drawing15%
C07CAcyclic or carbocyclic compounds13%
C07DHeterocyclic compounds8%
B62DMotor vehicles6%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments4%
C09KMaterials for miscellaneous applications, not provided for elsewhere4%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry2%
PatentTitleYear
9,790,384'Ink composition for writing instrument and coloring material'20179,315,672'Colorant, microcapsule pigment prepared by using the same and ink composition for writing instrument'20168,764,104'Structure of front section of vehicle body'20148,702,158'Structure for vehicle body front portion'20148,702,148'Structure for front section of vehicle body'20147,794,533'Oil-based ink composition for writing utensil and writing utensil employing the same'20107,521,491'Oil-based ink composition for ballpoint pen and ball-point pen using oil-based ink'20097,462,229'Oil-based ink composition for ballpoint pen using oil-based ink'20087,311,459'Follower for non-aqueous ball point pen and non-aqueous ball point pen'20077,172,648'Oil-base ballpoint ink composition and oily ballpoint pens'20077,071,245'Oil-based ballpoint pen ink composition and oil-based ballpoint pen'20067,056,052'Ink reservoir for writing instrument'20066,786,956'Ballpoint pen oil-based ink composition and ballpoint pens'20046,777,570'Process for producing norbornene derivative having organosilyl group'20046,531,594'Process for producing 1H-3-aminopyrrolidine and derivatives thereof'20036,077,971'Method for purifying homocystine'20006,051,629'Ink composition'20006,048,914'Ink composition for writing instrument'20005,980,624'Oil base ink composition'19995,847,205'Method for producing homocystine'19985,606,079'Process for the selective hydroformylation of terminal olefin groups and its use in the preparation of 1,4-butanedial monoacetal'19975,594,090'Alkylene sulfide group-containing prepolymer, polymerizable composition and optical material'19975,348,890'Trioxane derivatives, and method for the chemiluminescence'19945,254,742'Process for preparing 2-hexene-1,6-dial'19935,087,766'Process for producing allyl-substituted phenol compound and the product'19924,978,810'Polyalkenylphenol compound'19904,673,684'Amide derivatives and 5-lipoxygenase inhibitors containing the same as an active ingredient'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2007Based in Tokyo, JP· patent location history
1990–1993Patents assigned to MITSUBISHI PETROCHEMICAL CO (3)· patent assignee history
1990–2003Based in Ibaraki, JP· patent location history
1997–2004Patents assigned to MITSUBISHI CHEM CORP (5)· patent assignee history
1999–2017Patents assigned to MITSUBISHI PENCIL CO (13)· patent assignee history
1999–2017Based in Yokohama, JP· patent location history
2014Patents assigned to HONDA MOTOR CO LTD (3)· patent assignee history
2014Patents assigned to ICHIKAWA SHUJI (3)· patent assignee history
2014Based in Wako, JP· patent location history
2014Based in Saitama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI PENCIL CO131999–2017
MITSUBISHI CHEM CORP51997–2004
HONDA MOTOR CO LTD32014
ICHIKAWA SHUJIself32014
MITSUBISHI PETROCHEMICAL CO31990–1993
Locations
LocationPatentsSpan
Yokohama, JP101999–2017
Ibaraki, JP61990–2003
Tokyo, JP31987–2007
Wako, JP22014
Saitama, JP12014