LexDanaLexDanabeta
Inventor

Koutoku Ohmi

Inventor
Tottori, JP

Overview

4→
Patents
1994–2015
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere31%
H01JElectric discharge tubes or discharge lamps15%
H05BElectric heating15%
C23CCoating metallic material8%
F21VFunctional features or details of lighting devices or systems thereof8%
G21KHandling of particles or ionising radiation not otherwise provided for8%
H01LSemiconductor devices8%
H10HInorganic light-emitting semiconductor devices having potential barriers8%
PatentTitleYear
8,975,619'Silicate-based phosphor'20158,017,037'Fluorescent substance and light emitting device using the same'20117,517,473'Method for producing blue phosphor'20095,300,316'Method of forming thin oxysulfide film'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994Patents assigned to KOMATSU MFG CO LTD (1)· patent assignee history
1994Based in Hiratsuka, JP· patent location history
2009–2011Patents assigned to UNIV TOTTORI (2)· patent assignee history
2009Patents assigned to MITSUI MINING & SMELTING CO (1)· patent assignee history
2009–2015Based in Tottori, JP· patent location history
2015Patents assigned to MERCK PATENT GMBH (1)· patent assignee history
2015Patents assigned to MIYAMOTO YOSHINOBU (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNIV TOTTORI22009–2011
KOMATSU MFG CO LTD11994
MERCK PATENT GMBH12015
MITSUI MINING & SMELTING CO12009
MIYAMOTO YOSHINOBU12015
Locations
LocationPatentsSpan
Tottori, JP32009–2015
Hiratsuka, JP11994