KT

Kazuhiko Toyooka

3M: 11 patents #1,441 of 11,543Top 15%
Overall (All Time): #430,391 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
12189119 Imaging device 2025-01-07
12117642 Microreplicated optical film Hideaki Shirotori, Sayaka Kado, Gary T. Boyd 2024-10-15
12065078 Reflective backlit display with a liquid crystal cell 2024-08-20
10781986 Low-glare automotive headlight 2020-09-22
9494817 Display with nonwoven diffuser Hiroki Matsuda, Masaki Yamamuro, James A. Thielen, Jayant Chakravarty, Eric W. Nelson +1 more 2016-11-15
9423549 Surface illuminant device Masaki Yamamuro, Hiroki Matsuda 2016-08-23
7511783 Optical laminated bodies, lighting equipment and area luminescence equipment 2009-03-31
6972813 Optical laminated bodies, lighting equipment and area luminescence equipment 2005-12-06
6809892 Hollow surface illuminator 2004-10-26
6280063 Brightness enhancement article Bettie C. Fong, Wade D. Kretman, Keith M. Kotchick, Sanford Cobb, Jr., Richard A. Miller +1 more 2001-08-28
5919551 Variable pitch structured optical film Sanford Cobb, Jr., Mark E. Gardiner, Keith M. Kotchick, William A. Hibbard 1999-07-06