Patents by Inventor Chihiro Funakoshi

Chihiro Funakoshi 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).

  • Publication number: 20220325047
    Abstract: Provided is a curable resin composition that has excellent heat resistance and low warpage and is, furthermore, capable of improving light transmittance in cured products, a dry film and its cured product of, and an electronic component containing the cured product. A curable resin composition containing (A) an amide-imide resin, (B) a thermosetting resin, (C) a thermosetting accelerator and (D) inorganic particles, wherein the amide-imide resin (A) is a reaction product of an isocyanurate-type polyisocyanate synthesized from an isocyanate having an aliphatic structure and a tricarboxylic anhydride having an aliphatic structure and has a number-average molecular weight of 500 to 1000; a dry film and its cured product; and an electronic component containing the cured product were obtained.
    Type: Application
    Filed: September 2, 2020
    Publication date: October 13, 2022
    Applicant: Taiyo Ink Mfg. Co., Ltd.
    Inventors: Yoko SHIBASAKI, Chihiro FUNAKOSHI
  • Publication number: 20220315704
    Abstract: Provided is a curable resin composition having developability and resolution improved without degrading the heat resistance and the chemical resistance, furthermore, a curable resin composition that is useful as a PID material for optical uses or a material for optical sensor protective films and enables the formation of a cured product having both higher transparency and excellent heat resistance, a dry film containing the curable resin composition, a cured product thereof and a printed wiring board including the cured product. A curable resin composition containing (A) an amide-imide resin, (B) a compound having an ethylenic double bond and (C) a photopolymerization initiator, wherein the amide-imide resin (A) is a reaction product of an isocyanurate-type polyisocyanate synthesized from an isocyanate having an aliphatic structure and a tricarboxylic acid anhydride and has a number-average molecular weight of 500 to 1000.
    Type: Application
    Filed: August 28, 2020
    Publication date: October 6, 2022
    Applicant: Taiyo Ink Mfg. Co., Ltd.
    Inventors: Chihiro FUNAKOSHI, Yoko SHIBASAKI
  • Patent number: 9012559
    Abstract: Provided is a heat curable adhesive that can strongly bond a base material formed of a crystalline polyester resin, can freely regulate the thickness of an adhesive layer, has excellent chemical resistance, and, at the same time, has excellent storage stability. Furthermore, provided is a resin laminated-type IC card, in which a liquid heat curable adhesive of which use has been difficult in the past can be used, and the liquid heat curable adhesive can be coated with a good accuracy by a printing method without the need to perform molding into a hot-melt sheet to bond a base material formed of a crystalline polyester resin. Accordingly, the resin laminated-type IC card can have a high degree of freedom in design of the thickness of an IC card. The heat curable adhesive comprises (a) a hydroxyl group-containing non-crystalline polyester resin, (b) a resin containing a carboxylic acid anhydride, and (c) a solvent for dissolving (a) the hydroxyl group-containing non-crystalline polyester resin.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: April 21, 2015
    Assignee: Taiyo Holdings Co., Ltd.
    Inventors: Chihiro Funakoshi, Yoshitomo Aoyama
  • Publication number: 20110149541
    Abstract: Provided is a heat curable adhesive that can strongly bond a base material formed of a crystalline polyester resin, can freely regulate the thickness of an adhesive layer, has excellent chemical resistance, and, at the same time, has excellent storage stability. Furthermore, provided is a resin laminated-type IC card, in which a liquid heat curable adhesive of which use has been difficult in the past can be used, and the liquid heat curable adhesive can be coated with a good accuracy by a printing method without the need to perform molding into a hot-melt sheet to bond a base material formed of a crystalline polyester resin. Accordingly, the resin laminated-type IC card can have a high degree of freedom in design of the thickness of an IC card. The heat curable adhesive comprises (a) a hydroxyl group-containing non-crystalline polyester resin, (b) a resin containing a carboxylic acid anhydride, and (c) a solvent for dissolving (a) the hydroxyl group-containing non-crystalline polyester resin.
    Type: Application
    Filed: June 10, 2009
    Publication date: June 23, 2011
    Applicant: TAIYO HOLDINGS CO., LTD.
    Inventors: Chihiro Funakoshi, Yoshitomo Aoyama