Patents by Inventor Kan Komiya

Kan Komiya 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: 20220332927
    Abstract: A display device that includes a display element including a light source, and a surface film disposed so as to overlap with the display element and including a thermoplastic elastomer composition, the thermoplastic elastomer composition satisfying conditions (1) and (2) below, and the surface film satisfying conditions (3) and (4) below: (1) The melt flow rate (ASTM D1238, 230° C., 2.16 kg load; MFR) is not less than 30 g/10 min. (2) The type A hardness (momentary value) measured by a method in accordance with JIS K6253 is 60 to 90. (3) The thickness is not less than 300 ?m and not more than 2 mm. (4) The total light transmittance measured by a method in accordance with JIS K7361 is 3 to 60%.
    Type: Application
    Filed: September 14, 2020
    Publication date: October 20, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hayato KURITA, Kan KOMIYA
  • Patent number: 9606465
    Abstract: Provided are a propylene-based polymer useful for providing a toner that is excellent in offset resistance, can be fixed by using a low-temperature heating element and hardly has stickiness even after stored for a long period of time; and a toner including said propylene-based polymer. The present invention is directed to a propylene/?-olefin copolymer (A) which includes 60 to 90 mol % of structural units derived from propylene (a) and 10 to 40 mol % of structural units derived from ?-olefins having 4 or more carbon atom (b) wherein (a)+(b)=100 mol % and which satisfies: (i) a weight average molecular weight (Mw) as measured by GPC of 3,000 to 40,000; (ii) a melting point (Tm) as measured by DSC of 60 to 90° C.; and (iii) a half width of a crystalline melting point peak as measured by DSC of 1 to 20° C.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: March 28, 2017
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kuniaki Kawabe, Hirotaka Kanaya, Toshiyuki Ito, Kan Komiya
  • Patent number: 9153757
    Abstract: The purpose of the present invention is to provide a thermoplastic resin composition for a reflective material which has excellent mechanical strength, excellent heat resistance, excellent high reflectance, and excellent moldability, and which makes it possible to obtain a reflective plate with little decline in reflectance caused by heating. A first embodiment of this thermoplastic resin composition for a reflective material includes: a polyester resin (A) that has a melting point or glass transition temperature of 250° C. or higher and includes an alicyclic hydrocarbon structure; a thermoplastic resin (B) that has a polyolefin backbone and a functional group; a white pigment (C); and an inorganic filler (D); the thermoplastic resin (B) either including 0.1 to 1.8 wt % of a functional group unit (B1) that further includes a heteroatom, or further including an aromatic hydrocarbon structure (B2), and the limiting viscosity [?] being 0.04 to 1.0 dl/g.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: October 6, 2015
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hideto Ogasawara, Takashi Hama, Kuniaki Kawabe, Hirotaka Kanaya, Nobuhiro Takizawa, Akinori Amano, Hiroki Ebata, Kan Komiya
  • Publication number: 20150056548
    Abstract: Provided are a propylene-based polymer useful for providing a toner that is excellent in offset resistance, can be fixed by using a low-temperature heating element and hardly has stickiness even after stored for a long period of time; and a toner including said propylene-based polymer. The present invention is directed to a propylene/?-olefin copolymer (A) which includes 60 to 90 mol % of structural units derived from propylene (a) and 10 to 40 mol % of structural units derived from ?-olefins having 4 or more carbon atom (b) wherein (a)+(b)=100 mol % and which satisfies: (i) a weight average molecular weight (Mw) as measured by GPC of 3,000 to 40, 000; (ii) a melting point (Tm) as measured by DSC of 60 to 90° C.; and (iii) a half width of a crystalline melting point peak as measured by DSC of 1 to 20° C.
    Type: Application
    Filed: March 22, 2013
    Publication date: February 26, 2015
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Kuniaki Kawabe, Hirotaka Kanaya, Toshiyuki Ito, Kan Komiya
  • Publication number: 20140167091
    Abstract: The purpose of the present invention is to provide a thermoplastic resin composition for a reflective material which has excellent mechanical strength, excellent heat resistance, excellent high reflectance, and excellent moldability, and which makes it possible to obtain a reflective plate with little decline in reflectance caused by heating. A first embodiment of this thermoplastic resin composition for a reflective material includes: a polyester resin (A) that has a melting point or glass transition temperature of 250° C. or higher and includes an alicyclic hydrocarbon structure; a thermoplastic resin (B) that has a polyolefin backbone and a functional group; a white pigment (C); and an inorganic filler (D); the thermoplastic resin (B) either including 0.1 to 1.8 wt % of a functional group unit (B1) that further includes a heteroatom, or further including an aromatic hydrocarbon structure (B2), and the limiting viscosity [?] being 0.04 to 1.0 dl/g.
    Type: Application
    Filed: July 31, 2012
    Publication date: June 19, 2014
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Hideto Ogasawara, Takashi Hama, Kuniaki Kawabe, Hirotaka Kanaya, Nobuhiro Takizawa, Akinori Amano, Hiroki Ebata, Kan Komiya
  • Patent number: 8617706
    Abstract: First pellets according to the present invention is characterized by satisfying all of the following requirements (Z), (1), (2), and (3): (Z) the pellet comprises a polymer (A) having an elastic modulus in tension of 100 MPa or less, (1) the pellets have an average weight per 30 pellets in the range of 0.80 to 2.00 g; (2) the pellets have a particle size distribution obtained by sieving in which pellets providing a maximum weight fraction account for 90 to 100% of the pellets; and (3) the pellets have a Lave/Dave value in the range of 1.00 to 1.70. Second pellets according to the present invention is characterized by satisfying the requirements of the (Z) and the following (4): (4) the pellets have a blocking force of 35 N or less that is measured after the pellets are left under a load at 35° C. for 24 hours and further at ?10° C. for 7 days.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: December 31, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kan Komiya, Tetsuya Nakamura
  • Patent number: 8609769
    Abstract: An object of the present invention is to provide resin compositions which have excellent tensile strength, impact resistance and appearance without deterioration in properties inherent to general-purpose engineering plastics and propylene resins and to provide uses thereof. The resin compositions of the present invention contain 20 to 80 wt % of a general-purpose engineering plastic (A), 10 to 50 wt % of a polypropylene resin (B) and 1 to 30 wt % of a modified propylene resin (C), and the modified propylene resin (C) is obtained by modifying a resin composition (C-3) which includes 0 to 40 wt % of a polypropylene (C-1) having a melting point of not less than 120° C., and 60 to 100 wt % of a propylene/C2 or C4-10 ?-olefin copolymer (C-2) having a melting point (Tm) of less than 120° C. or not showing a melting point peak in DSC.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: December 17, 2013
    Assignee: Mitsui Chemicals, Inc.
    Inventor: Kan Komiya
  • Publication number: 20130041080
    Abstract: There is provided a thermoplastic polymer composition excellent in the balance among mechanical strength, elongation at break, flexibility and heat resistance, and an article including the composition, and an electric wire and electric cable having an insulator and/or a sheath including the composition. The thermoplastic polymer composition includes 1 to 350 parts by mass of a filler (D) with respect to 100 parts by mass of polymer components that comprise 50 to 90% by mass of an ethylene/unsaturated ester copolymer (A); 1 to 40% by mass of a propylene-based polymer (B) having a melting point as measured by differential scanning calorimetry (DSC) of from 120 to 170° C.; and 1 to 49% by mass of a propylene-based polymer (C) having a melting point as measured by differential scanning calorimetry (DSC) of lower than 120° C. or not being observed, provided that the total amount of (A), (B) and (C) is 100% by mass.
    Type: Application
    Filed: April 19, 2011
    Publication date: February 14, 2013
    Inventors: Nozomi Kamiya, Kiminori Noda, Kan Komiya, Takayuki Kuroki, Hiroto Yasui
  • Publication number: 20110021706
    Abstract: An object of the present invention is to provide resin compositions which have excellent tensile strength, impact resistance and appearance without deterioration in properties inherent to general-purpose engineering plastics and propylene resins and to provide uses thereof. The resin compositions of the present invention contain 20 to 80 wt % of a general-purpose engineering plastic (A), 10 to 50 wt % of a polypropylene resin (B) and 1 to 30 wt % of a modified propylene resin (C) , and the modified propylene resin (C) is obtained by modifying a resin composition (C-3) which includes 0 to 40 wt % of a polypropylene (C-1) having a melting point of not less than 120° C., and 60 to 100 wt % of a propylene/C2 or C4-10 ?-olefin copolymer (C-2) having a melting point (Tm) of less than 120° C. or not showing a melting point peak in DSC.
    Type: Application
    Filed: March 24, 2009
    Publication date: January 27, 2011
    Inventor: Kan KOMIYA
  • Publication number: 20090321300
    Abstract: First pellets according to the present invention is characterized by satisfying all of the following requirements (Z), (1), (2), and (3): (Z) the pellet comprises a polymer (A) having an elastic modulus in tension of 100 MPa or less, (1) the pellets have an average weight per 30 pellets in the range of 0.80 to 2.00 g; (2) the pellets have a particle size distribution obtained by sieving in which pellets providing a maximum weight fraction account for 90 to 100% of the pellets; and (3) the pellets have a Lave/Dave value in the range of 1.00 to 1.70. Second pellets according to the present invention is characterized by satisfying the requirements of the (Z) and the following (4): (4) the pellets have a blocking force of 35 N or less that is measured after the pellets are left under a load at 35° C. for 24 hours and further at ?10° C. for 7 days.
    Type: Application
    Filed: August 6, 2007
    Publication date: December 31, 2009
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Kan Komiya, Tetsuya Nakamura