Kunihiro Atsumi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: A cellulose ester film comprising a cellulose ester and a reaction product between at least one epoxy compound and at least one polymerization accelerator; a polarizing plate using the cellulose ester film as a protective layer of a polarizer; and a liquid crystal display device using either the cellulose ester film or the polarizing plate.
Abstract: An optical film includes at least one kind of humidity dependency improver that improves ?Re, wherein the optical film has a ratio of Re/Rth which is larger as a wavelength is longer in the visible wavelength region; and Re which is larger as a wavelength is longer in the visible wavelength region, wherein Re represents an in-plane retardation (unit: nm) of the optical film; Rth represents a retardation (unit: nm) in a thickness direction of the optical film; and ?Re represents a humidity dependency of Re defined by the following formula (1): ?Re=|Re(550)10%RH?Re(550)80%RH|,: ??Formula (1) wherein Re(550)10%RH represents Re at a wavelength of 550 nm, at a temperature of 25° C. and at a relative humidity of 10%; and Re(550)80%RH represents Re at a wavelength of 550 nm, at a temperature of 25° C. and at a relative humidity of 80%.
Abstract: A cellulose acylate film comprising a compound having a hydrogen-donating group capable of forming a hydrogen bond and an aromatic ring, and a compound represented by the following formula: wherein R2, R4, and R5 represent H or a substituent, R11 and R13 represent H or an alkyl group, L1 and L2 represent a single bond or a divalent linking group, Ar1 represents an arylene group or a divalent aromatic heterocyclic group, Ar2 represents an aryl group or a monovalent aromatic heterocyclic group, n represents an integer of 3 or more.
Abstract: A cellulose acylate film is provided and has an elasticity modulus of 4,800 MPa to 10,000 MPa in at least either a machine direction MD at film-formation time or a direction TD perpendicular to the machine direction.