Patents by Inventor Genta Harada

Genta Harada 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).

  • Process for producing pyrophosphate
    Patent number: 9493353
    Abstract: A process for producing a pyrophosphate, particularly melamine pyrophosphate useful as a flame retardant, efficiently in high yield is provided. The process includes firing an orthophosphate, preferably melamine orthophosphate, in the presence of a silicone oil, preferably methylphenyl silicone oil preferably at 120° to 350° C. Examples of useful firing equipment include a hot air dryer, a kneader, a Henschel mixture, a fluidized bed dryer, a rotary kiln, a paddle dryer, an extruder, a vibrating dryer, a far-infrared conveyor furnace, and a microwave firing furnace.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: November 15, 2016
    Assignee: ADEKA CORPORATION
    Inventors: Genta Harada, Yutaka Yonezawa, Michio Nakamura, Yuri Okamoto, Kohei Omori
  • PROCESS FOR PRODUCING PYROPHOSPHATE
    Publication number: 20150353513
    Abstract: A process for producing a pyrophosphate, particularly melamine pyrophosphate useful as a flame retardant, efficiently in high yield is provided. The process includes firing an orthophosphate, preferably melamine orthophosphate, in the presence of a silicone oil, preferably methylphenyl silicone oil preferably at 120° to 350° C. Examples of useful firing equipment include a hot air dryer, a kneader, a Henschel mixture, a fluidized bed dryer, a rotary kiln, a paddle dryer, an extruder, a vibrating dryer, a far-infrared conveyor furnace, and a microwave firing furnace.
    Type: Application
    Filed: February 14, 2014
    Publication date: December 10, 2015
    Applicant: ADEKA CORPORATION
    Inventors: Genta HARADA, Yutaka YONEZAWA, Michio NAKAMURA, Yuri OKAMOTO, Kohei OMORI
  • Optical film
    Patent number: 8293145
    Abstract: Disclosed is an optical film characterized by containing 0.001-10 parts by mass of an ultraviolet absorbent represented by general formula (1) per 100 parts by mass of a cellulose ester. (In the formula, n represents an integer of 1-4; when n is 1, R represents an alkyl group having 3-30 carbon atoms, and when n is 2-4, R represents a residue obtained by removing a carboxylic acid group from an aliphatic or aromatic polybasic acid having 1-34 carbon atoms; and R1, R2, R3 and R4 independently represent a hydrogen atom or an alkyl group having 1-4 carbon atoms.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: October 23, 2012
    Assignee: Adeka Corporation
    Inventors: Yoshinori Negishi, Genta Harada, Hiroshi Yamanoi
  • OPTICAL FILM
    Publication number: 20110121245
    Abstract: Disclosed is an optical film characterized by containing 0.001-10 parts by mass of an ultraviolet absorbent represented by general formula (1) per 100 parts by mass of a cellulose ester. (In the formula, n represents an integer of 1-4; when n is 1, R represents an alkyl group having 3-30 carbon atoms, and when n is 2-4, R represents a residue obtained by removing a carboxylic acid group from an aliphatic or aromatic polybasic acid having 1-34 carbon atoms; and R1, R2, R3 and R4 independently represent a hydrogen atom or an alkyl group having 1-4 carbon atoms.
    Type: Application
    Filed: June 29, 2009
    Publication date: May 26, 2011
    Applicant: ADEKA CORPORATION
    Inventors: Yoshinori Negishi, Genta Harada, Hiroshi Yamanoi