Patents by Inventor Minoru Yada

Minoru Yada 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: 20260218454
    Abstract: A problem is to provide a carbon material precursor that undergoes little shrinkage upon carbonization treatment, the carbon material precursor including, as a main component, cellulosic fibers, which are a sustainable biomass resource. Furthermore, another problem is to provide a method of manufacturing a carbon material enabling reduction in shrinkage upon carbonization treatment even if a precursor including cellulosic fibers as a main component is used. A carbon material precursor including an unfired fiber mixture of cellulosic fibers and synthetic polymer fibers is prepared, a content of the cellulosic fibers in the unfired fiber mixture being 50% by weight or more, a content of the synthetic polymer fibers in the unfired fiber mixture being 5% by weight or more and less than 50% by weight.
    Type: Application
    Filed: March 20, 2026
    Publication date: July 30, 2026
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Minoru YADA, Tatsunori ITO, Koji FUKAZAWA, Yoshihide WATANABE
  • Patent number: 12359007
    Abstract: A modified polyolefin resin composition may include a modified polyolefin resin (X) formed by modifying an acid-modified polyolefin resin (A) with a modification component comprising an alcohol (B), in which the modified polyolefin resin composition satisfies (I) to (III): (I) the resin (A) is a resin formed by modifying a polyolefin (a) with an ?,?-unsaturated carboxylic acid and a derivative (b) of the ?,?-unsaturated carboxylic acid having a structure (b1) derived from at least one carboxy group; (II) a residual ratio of the structure (b1) in the resin (X) is more than 0% to 50% or less; and (III) a content of the alcohol in the composition is 1.0 mol to 5.0 mol relative to 1.0 mol of the structure (b1) that the resin (A) has.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: July 15, 2025
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masaru Kono, Hitomi Abe, Minoru Yada, Naosuke Komoto
  • Patent number: 12331140
    Abstract: An object of the present invention is to provide a modified polyolefin resin composition having a high polyethylene content and exhibiting a good balance between a low-temperature stability and an adhesion to a polyethylene substrate and a metal. The present invention provides a modified polyolefin resin that is a graft-modified product in which a component (A) that is a polyolefin resin having an ethylene structural unit content of 50% or more by mole is modified with a component (B) that is an ?,?-unsaturated carboxylic acid or an anhydride thereof and a component (C) that is a (meth)acrylate ester represented by the following general formula (I), and an extrapolated melting end temperature (Tem) of the modified polyolefin resin measured in accordance with JIS K7121-1987 using a differential scanning calorimeter at a temperature raising rate of 10° C./minute is 58° C. or lower.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: June 17, 2025
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Tomohiro Okeda, Takato Takenaka, Isamu Ono, Minoru Yada, Hiroko Iwakiri
  • Publication number: 20240316529
    Abstract: A problem is to provide a formed adsorber having excellent adsorption and desorption performance for fuel vapor (in particular, n-butane) of a wide concentration range from a low concentration to a high concentration. A formed product including activated carbon fiber, granular activated carbon, and a binder is prepared. A weight ratio of the activated carbon fiber to the granular activated carbon is 5 to 95 parts by weight of the activated carbon fiber to 95 to 5 parts by weight of the granular activated carbon, in a total weight of the activated carbon fiber and the granular activated carbon, a content ratio of the binder in the formed adsorber is 0.3 to 20 parts by weight of the binder to 100 parts by weight of the activated carbon fiber and the granular activated carbon, the granular activated carbon has a total pore volume ranging from 0.90 to 2.50 cm3/g, and the activated carbon fiber has a total pore volume ranging from 0.50 to 1.20 cm3/g.
    Type: Application
    Filed: March 20, 2024
    Publication date: September 26, 2024
    Applicants: NIPPON PAPER INDUSTRIES CO., LTD., FUTABA INDUSTRIAL CO., LTD.
    Inventors: Yoshihide Watanabe, Dongyeon Ryu, Minoru Yada, Takuya Nakagawa, Shogo Minezawa, Masahito Hosoi, Koji Iwamoto, Kyohei Yamaguchi, Tamami Ina
  • Patent number: 11970603
    Abstract: A chlorinated polyolefin resin may have excellent adhesion and can be produced without using a chlorinated solvent and without producing by-products through a series of production processes. Such a chlorinated polyolefin resin may be a chlorinated polyolefin resin having an amount of chlorine of 1% by weight to 45% by weight obtained by chlorinating a raw material composition in the absence of an organic solvent, wherein the raw material composition includes at least a polyolefin A or an acid-modified product thereof which has fluidity at 40° C. or less and a polyolefin B or an acid-modified product thereof which has a melting point of more than 40° C. and 150° C. or less.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: April 30, 2024
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Minoru Yada, Naosuke Komoto
  • Patent number: 11939463
    Abstract: Provided is a resin composition having a large proportion of polyolefin components, allowing preparation of a solution having a high solid content, having a good solution property after long-term storage, having good pigment dispersibility, and including a modified product of component (A): polyolefin resin with component (B): (meth)acrylic acid and/or (meth)acrylic acid ester, in which the weight ratio of the component (A) to the component (B) ((A)/(B)) is 90/10 to 30/70, and the component (B) contains 20% by weight or more of component (B1): an alkoxy (poly)alkylene glycol mono(meth)acrylic acid ester.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: March 26, 2024
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masaru Kono, Hitomi Abe, Minoru Yada, Naosuke Komoto
  • Publication number: 20230257492
    Abstract: An object of the present invention is to provide a modified polyolefin resin composition having a high polyethylene content and exhibiting a good balance between a low-temperature stability and an adhesion to a polyethylene substrate and a metal. The present invention provides a modified polyolefin resin that is a graft-modified product in which a component (A) that is a polyolefin resin having an ethylene structural unit content of 50% or more by mole is modified with a component (B) that is an ?,?-unsaturated carboxylic acid or an anhydride thereof and a component (C) that is a (meth)acrylate ester represented by the following general formula (I), and an extrapolated melting end temperature (Tem) of the modified polyolefin resin measured in accordance with JIS K7121-1987 using a differential scanning calorimeter at a temperature raising rate of 10° C./minute is 58° C. or lower.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 17, 2023
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Tomohiro OKEDA, Takato TAKENAKA, Isamu ONO, Minoru YADA, Hiroko IWAKIRI
  • Patent number: 11518838
    Abstract: An object is to provide a resin composition having excellent performance as a binder such as adhesiveness and, at the same time, retaining solution properties favorably even after a solution is stored for a long period of time. A modified polyolefin resin composition includes a modified polyolefin resin (C), in which the modified polyolefin resin (C) is a resin made by modifying a polymer (A) that is a polymer (a) of a polyolefin resin or a chlorinated polyolefin resin and an ?,?-unsaturated carboxylic acid derivative having a structure derived from at least one carboxy group or a chlorinated product (b) thereof with a modification component including an alcohol (B); and a residual ratio of the structure derived from at least one carboxy group in the modified polyolefin resin (C) is 50% or more and 80% or less.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: December 6, 2022
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masaru Kono, Takao Yoshimoto, Takato Takenaka, Minoru Yada, Naosuke Komoto
  • Patent number: 11518872
    Abstract: An object is to provide a chlorinated polyolefin resin composition being superior in adhesion, solution stability, and chipping resistance. The chlorinated polyolefin resin composition contains a component (A): a polyolefin resin A having a melting point (TmA) obtained with a differential scanning calorimeter (DSC) in the range of 90 to 160° C., and a component (B): a polyolefin resin B having a melting point (TmB) obtained with a differential scanning calorimeter (DSC) in the range of 50 to 130° C., at least any one of the component (A) and the component (B), or a copolymer thereof being a chlorinated polyolefin resin (where |TmA?TmB|?5° C.).
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: December 6, 2022
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masaru Kono, Kensuke Asai, Takao Yoshimoto, Takato Takenaka, Minoru Yada, Naosuke Komoto
  • Publication number: 20220195084
    Abstract: The present invention provides a modified polyolefin resin composition including a modified polyolefin resin (X) formed by modifying an acid-modified polyolefin resin (A) with a modification component comprising an alcohol (B), in which the modified polyolefin resin composition satisfies the following (I) to (III) and also provides applications of the modified polyolefin resin composition. (I) The resin (A) is a resin formed by modifying a polyolefin (a) with an ?,?-unsaturated carboxylic acid and a derivative (b) of the ?,?-unsaturated carboxylic acid having a structure (b1) derived from at least one carboxy group. (II) A residual ratio of the structure (b1) in the resin (X) is more than 0% to 50% or less. (III) A content of the alcohol in the composition is 1.0 mol to 5.0 mol relative to 1.0 mol of the structure (b1) that the resin (A) has.
    Type: Application
    Filed: April 10, 2020
    Publication date: June 23, 2022
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masaru KONO, Hitomi ABE, Minoru YADA, Naosuke KOMOTO
  • Publication number: 20210395511
    Abstract: Provided is a resin composition having a large proportion of polyolefin components, allowing preparation of a solution having a high solid content, having a good solution property after long-term storage, having good pigment dispersibility, and including a modified product of component (A): polyolefin resin with component (B): (meth)acrylic acid and/or (meth)acrylic acid ester, in which the weight ratio of the component (A) to the component (B) ((A)/(B)) is 90/10 to 30/70, and the component (B) contains 20% by weight or more of component (B1): an alkoxy (poly)alkylene glycol mono(meth)acrylic acid ester.
    Type: Application
    Filed: September 25, 2019
    Publication date: December 23, 2021
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masaru KONO, Hitomi ABE, Minoru YADA, Naosuke KOMOTO
  • Publication number: 20210292530
    Abstract: A chlorinated polyolefin resin may have excellent adhesion and can be produced without using a chlorinated solvent and without producing by-products through a series of production processes. Such a chlorinated polyolefin resin may be a chlorinated polyolefin resin having an amount of chlorine of 1% by weight to 45% by weight obtained by chlorinating a raw material composition in the absence of an organic solvent, wherein the raw material composition includes at least a polyolefin A or an acid-modified product thereof which has fluidity at 40° C. or less and a polyolefin B or an acid-modified product thereof which has a melting point of more than 40° C. and 150° C. or less.
    Type: Application
    Filed: July 22, 2019
    Publication date: September 23, 2021
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Minoru YADA, Naosuke KOMOTO
  • Patent number: 11046844
    Abstract: Provided is a modified polyolefin resin that is excellent in adhesion to nonpolar substrates such as a polyolefin substrate, and excellent in stability in an alcohol solvent. In the modified polyolefin resin, the following polymer (A) is grafted on the following resin (B). Polymer (A): a polymer including at least one constitutional unit selected from the group consisting of a constitutional unit derived from an ?,?-unsaturated carboxylic acid and a constitutional unit derived from a derivative of an ?,?-unsaturated carboxylic acid, and having a hydroxyl value in a range of 10 mgKOH/g or larger and 200 mgKOH/g or smaller. Resin (B): a polyolefin resin or a modified product thereof.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: June 29, 2021
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masaru Kono, Minoru Yada, Naosuke Komoto
  • Publication number: 20210102054
    Abstract: A resin composition can be used as a raw material of a primer, and capable of superior solution stability, adhesion to a non-polar substrate, and/or chipping resistance in a coating film formed from the composition.
    Type: Application
    Filed: February 28, 2019
    Publication date: April 8, 2021
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masaru KONO, Hitomi ABE, Junichi HAYAKAWA, Minoru YADA, Naosuke KOMOTO
  • Publication number: 20210070911
    Abstract: An object is to provide a resin composition having excellent performance as a binder such as adhesiveness and, at the same time, retaining solution properties favorably even after a solution is stored for a long period of time. A modified polyolefin resin composition includes a modified polyolefin resin (C), in which the modified polyolefin resin (C) is a resin made by modifying a polymer (A) that is a polymer (a) of a polyolefin resin or a chlorinated polyolefin resin and an ?,?-unsaturated carboxylic acid derivative having a structure derived from at least one carboxy group or a chlorinated product (b) thereof with a modification component including an alcohol (B); and a residual ratio of the structure derived from at least one carboxy group in the modified polyolefin resin (C) is 50% or more and 80% or less.
    Type: Application
    Filed: October 23, 2018
    Publication date: March 11, 2021
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masaru KONO, Takao YOSHIMOTO, Takato TAKENAKA, Minoru YADA, Naosuke KOMOTO
  • Publication number: 20210009727
    Abstract: An object is to provide a chlorinated polyolefin resin that has excellent solution stability and excellent adhesion to polyolefin substrates including a polyethylene substrate. The chlorinated polyolefin resin is a chlorinated product of a copolymer having a structural unit derived from ethylene, in which a content ratio of the ethylene structural unit in the copolymer is 50 mol % to 90 mol %.
    Type: Application
    Filed: January 11, 2019
    Publication date: January 14, 2021
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Yiwen CHEN, Kota FUJIMOTO, Takato TAKENAKA, Masanoru TANAKA, Eriko MURAOKA, Minoru YADA, Naosuke KOMOTO
  • Publication number: 20200385557
    Abstract: An object is to provide a chlorinated polyolefin resin composition being superior in adhesion, solution stability, and chipping resistance. The chlorinated polyolefin resin composition contains a component (A): a polyolefin resin A having a melting point (TmA) obtained with a differential scanning calorimeter (DSC) in the range of 90 to 160° C., and a component (B): a polyolefin resin B having a melting point (TmB) obtained with a differential scanning calorimeter (DSC) in the range of 50 to 130° C., at least any one of the component (A) and the component (B), or a copolymer thereof being a chlorinated polyolefin resin (where |TmA?TmB|?5° C.).
    Type: Application
    Filed: March 12, 2018
    Publication date: December 10, 2020
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masaru KONO, Kensuke ASAI, Takao YOSHIMOTO, Takato TAKENAKA, Minoru YADA, Naosuke KOMOTO
  • Patent number: 10435558
    Abstract: The present invention aims to provide a resin having an excellent solubility to alcohols, an excellent adherability to nonpolar base materials such as polyolefin, and not containing chlorine; and to provide a resin composition containing a urethane resin, not having the elimination problem of hydrochloric acid caused by external factors, having a good compatibility with a variety of components containing urethane resins, and having a good adherability to a variety of base materials, so that the resin composition can suitably be used as an ink, an adhesive, and paint.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: October 8, 2019
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Minoru Yada, Yuu Takata, Junichi Hayakawa, Shunji Sekiguchi, Kazutaka Nakagawa
  • Publication number: 20190264020
    Abstract: Provided is a modified polyolefin resin that is excellent in adhesion to nonpolar substrates such as a polyolefin substrate, and excellent in stability in an alcohol solvent. In the modified polyolefin resin, the following polymer (A) is grafted on the following resin (B). Polymer (A): a polymer including at least one constitutional unit selected from the group consisting of a constitutional unit derived from an ?,?-unsaturated carboxylic acid and a constitutional unit derived from a derivative of an ?,?-unsaturated carboxylic acid, and having a hydroxyl value in a range of 10 mgKOH/g or larger and 200 mgKOH/g or smaller. Resin (B): a polyolefin resin or a modified product thereof.
    Type: Application
    Filed: September 26, 2017
    Publication date: August 29, 2019
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Masaru KONO, Minoru YADA, Naosuke KOMOTO
  • Publication number: 20170275457
    Abstract: The present invention aims to provide a resin having an excellent solubility to alcohols, an excellent adherability to nonpolar base materials such as polyolefin, and not containing chlorine; and to provide a resin composition containing a urethane resin, not having the elimination problem of hydrochloric acid caused by external factors, having a good compatibility with a variety of components containing urethane resins, and having a good adherability to a variety of base materials, so that the resin composition can suitably be used as an ink, an adhesive, and paint.
    Type: Application
    Filed: August 26, 2015
    Publication date: September 28, 2017
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Minoru YADA, Yuu TAKATA, Junichi HAYAKAWA, Shunji SEKIGUCHI, Kazutaka NAKAGAWA