P

Inventor

SHIMIZU AKIKO

JP25 patents
⚠️ This page may combine multiple inventors who share the name “SHIMIZU AKIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO CHEMICAL CO

13 patents
US6060183AMay 9, 2000

Phase retarder and liquid crystal display device using the same

SUMITOMO CHEMICAL CO61 citations96
US5886760AMar 23, 1999

Microlens-array, production method thereof, and liquid crystal display device using the same

SUMITOMO CHEMICAL CO37 citations92
US5693253ADec 2, 1997

Optically anisotropic material, process for producing it, and retardation plate and liquid crystal device using same

SUMITOMO CHEMICAL CO19 citations92
US5688436ANov 18, 1997

Optically anisotropic material, process for producing it, and retardation plate and liquid crystal display device using same

SUMITOMO CHEMICAL CO42 citations92
US5430566AJul 4, 1995

Liquid crystal device with phase retarder having layered inorganic compound

SUMITOMO CHEMICAL CO40 citations92
US5285303AFeb 8, 1994

Phase retarder and process for producing the same

SUMITOMO CHEMICAL CO28 citations92
US6208396B1Mar 27, 2001

Normally white mode twisted nematic liquid crystal display device having improved viewing angle characteristics

SUMITOMO CHEMICAL CO32 citations91
US5888634AMar 30, 1999

Phase retarder film

SUMITOMO CHEMICAL CO14 citations82
US5658505AAug 19, 1997

Process for making a phase retarder film

SUMITOMO CHEMICAL CO16 citations82
US5631755AMay 20, 1997

Layered inorganic compound-containing phase retarder

SUMITOMO CHEMICAL CO12 citations73
US6097460AAug 1, 2000

Phase retarder film containing TiO2

SUMITOMO CHEMICAL CO15 citations72
US5926313AJul 20, 1999

Phase retarder film

SUMITOMO CHEMICAL CO10 citations72
US7247380B2Jul 24, 2007

Laminated phase retarder film and a liquid crystal display using the same

SUMITOMO CHEMICAL CO0 citations52

KYOWA HAKKO KIRIN CO LTD

5 patents

HOYA CORP

2 patents

SONY CORP

2 patents

MITSUBISHI CABLE IND LTD

1 patent

SHITARA KENYA

1 patent

BANYU PHARMA CO LTD

1 patent