Inventor

TATSUYA OBA

Inventor

Overview

8→

Patents

2021–2025

Patent span

Physics

Primary field (CPC G)

Patents· 8 as inventor

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

F21Sprimary

F21SNon-portable lighting devices13%

G02BOptical elements, systems or apparatus13%

C09KMaterials for miscellaneous applications, not provided for elsewhere9%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein9%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form7%

F21VFunctional features or details of lighting devices or systems thereof7%

H01LSemiconductor devices7%

H10HInorganic light-emitting semiconductor devices having potential barriers7%

B23BTurning2%

B29CShaping or joining of plastics2%

PatentTitleYear

12,445,000Magnetic core and magnetic component2025 11,914,172Light absorbing body-containing film and backlight unit2024 11,886,079Wavelength conversion member, light emitting device, and liquid crystal display device2024 11,740,506Wavelength conversion member, backlight unit, and liquid crystal display device2023 11,549,054Phosphor-containing film and backlight unit2023 11,298,917Decorative member and manufacturing method thereof2022 11,242,481Wavelength conversion film and backlight unit2022 11,136,496Phosphor-containing film and backlight unit2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2024Patents assigned to FUJIFILM CORP (6)· patent assignee history

2021–2025Based in JP· patent location history

2022Patents assigned to SHINKO NAMEPLATE CO LTD (1)· patent assignee history

2022Patents assigned to TOYODA GOSEI KK (1)· patent assignee history

2025Patents assigned to DELTA ELECTRONICS JAPAN INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJIFILM CORP	6	2021–2024
DELTA ELECTRONICS JAPAN INC	1	2025
SHINKO NAMEPLATE CO LTD	1	2022
TOYODA GOSEI KK	1	2022

Locations

Location	Patents	Span
JP	8	2021–2025