Inventor

Kazuhiko Toyooka

Inventor

Yamagata, JP

Overview

8→

Patents

1999–2020

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.

G02Bprimary

G02BOptical elements, systems or apparatus46%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein15%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form8%

B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general8%

F21SNon-portable lighting devices8%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

Y10TTechnical subjects covered by former us classification8%

PatentTitleYear

10,781,986Low-glare automotive headlight2020 9,494,817'Display with nonwoven diffuser'2016 9,423,549'Surface illuminant device'2016 7,511,783'Optical laminated bodies, lighting equipment and area luminescence equipment'2009 6,972,813'Optical laminated bodies, lighting equipment and area luminescence equipment'2005 6,809,892'Hollow surface illuminator'2004 6,280,063'Brightness enhancement article'2001 5,919,551'Variable pitch structured optical film'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2020Patents assigned to 3M INNOVATIVE PROPERTIES CO (8)· patent assignee history

1999–2020Based in Yamagata, JP· patent location history

2016Patents assigned to MATSUDA HIROKI (1)· patent assignee history

2016Patents assigned to TOYOOKA KAZUHIKO (1)· patent assignee history

2016Patents assigned to YAMAMURO MASAKI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
3M INNOVATIVE PROPERTIES CO	8	1999–2020
MATSUDA HIROKI	1	2016
TOYOOKA KAZUHIKOself	1	2016
YAMAMURO MASAKI	1	2016

Locations

Location	Patents	Span
Yamagata, JP	8	1999–2020