Nitto-denko Corporation

Isamu Kitahara

Peng Wang

Shijun Zheng

Weiping Lin

Sergey Simavoryan

Ozair Siddiqui

Michiharu Yamamoto

Shunsuke Noumi

John Ericson

Tao Gu

Masahiko Hirose

Craig Roger Bartels

Stanislaw Rachwal

Rebecca Romero

Bogumila Rachwal

Makoto Kobuke

Yuji Yamashiro

Sheng Li

Wanyun Hsieh

Described herein are devices, compositions, and methods for improving color discernment. In particular, devices and methods for correcting color blindness comprising a hologram that enhances the ability to distinguish a desired first bandwidth by decreasing the transmission of a second bandwidth. Advantageously, the device appears not tinted to outside observer.

Color filter using holographic element

Described herein is a crosslinked graphene and biopolymer (e.g. lignin) based composite membrane that provides selective resistance for solutes while providing water permeability. The membrane may include optional additional functional additives in a crosslinked material matrix that provides enhanced salt separation from water. Methods for making such membranes, and methods of using the membranes for dehydrating or removing solutes from water are also described.

Selectively permeable graphene oxide membrane

Described herein is a graphene material such as graphene oxide and polymer based selectively permeable element that provides selective permeability between polar and non-polar molecules such as fluid, gas or vapor. The methods for making these selectively permeable elements and related devices are also described.

Selectively permeable graphene oxide element

Described herein are novel azo-benzene type chromophores. The chromophores are useful in photochromic compositions comprising a polymer matrix and a chromophore, wherein the chromophore is a novel azo-benzene type structure. The photochromic composition is photoresponsive upon irradiation by at least one wavelength of laser light across the visible light spectrum. Photochromic devices which comprise the novel azo-benzene type chromophore compound show significantly higher photoinduced birefringence, higher diffraction efficiency, and brighter images than devices that comprise well known azo-benzene chromophores. The photochromic composition may include a liquid crystal.

Chromophores for photochromic compositions useful for three dimensional display applications

Described herein is a graphene-based valve element capable of passive and repeatable stopping or allowing fluid flow as a function of inlet pressure. Passive flow controller devices based on the valve element are also described.

Pressure sensitive graphene-based valve element

Described herein is a graphene material based membrane that provides selective resistance for solutes or gas while providing water permeability. A selectively permeable membrane comprising graphene oxide, reduced graphene oxide, and also functionalized or crosslinked between the graphene, that provides enhanced salt separation from water or gas permeability resistance, methods for making such membranes, and methods of using the membranes for dehydrating or removing solutes from water are also described.

Growing community of inventors

San Diego, CA, United States of America

Isamu Kitahara