Inventor

KUMASAWA TOMOKO

JP8 patents

⚠️ This page may combine multiple inventors who share the name “KUMASAWA TOMOKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DAINIPPON PRINTING CO LTD

4 patents

US7940436B2May 10, 2011

Authenticity indicator

DAINIPPON PRINTING CO LTD5 citations70

US7719762B2May 18, 2010

Transmitting-reflecting projection screen, and projection system comprising the same

DAINIPPON PRINTING CO LTD6 citations62

US7538919B2May 26, 2009

Three-dimensional hologram process with overt anti-counterfeit security using first object light, second object light, and reference light

DAINIPPON PRINTING CO LTD0 citations51

USRE44890EMay 13, 2014

Authenticity indicator

DAINIPPON PRINTING CO LTD1 citations48

YAMAUCHI TSUYOSHI

2 patents

US9001401B2Apr 7, 2015

Fabrication process of multi-image type hologram, and multi-image type hologram fabricated by that process

YAMAUCHI TSUYOSHI2 citations61

US8289595B2Oct 16, 2012

Hologram and its holographic process

YAMAUCHI TSUYOSHI0 citations50

KONICA MINOLTA OPTO INC

1 patent

US7598025B2Oct 6, 2009

Hologram silver halide photographic material, hologram and method for producing the same

KONICA MINOLTA OPTO INC0 citations40

KUMASAWA TOMOKO

1 patent

US8743443B2Jun 3, 2014

Hologram fabrication process, and hologram fabricated by that process

KUMASAWA TOMOKO0 citations33