Patents by Inventor Yoshinori Fukushima

Yoshinori Fukushima 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).

  • Patent number: 11713430
    Abstract: A silicone grease composition is disclosed. The grease composition contains a silicone oil and zinc dialkyldithiocarbamate as an extreme-pressure additive. The grease composition contains substantially no zinc dialkyldithiophosphate. The grease composition achieves high friction characteristics and wear characteristics. A method for transmitting torque of a clutch or a torque limiter mechanism is also disclosed. Moreover, a method for producing a clutch or a torque limiter mechanism is disclosed. The methods utilize the aforementioned grease composition.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: August 1, 2023
    Assignees: DENSO CORPORATION, DUPONT TORAY SPECIALTY MATERIALS KABUSHIKI KAISHA
    Inventors: Yoshinori Fukushima, Youichi Hasegawa, Yuji Masamura, Makoto Mori, Koji Sakakibara
  • Patent number: 11390826
    Abstract: A silicone grease composition having high friction characteristics and wear characteristics is disclosed. The silicone grease composition is provided by adding a zinc salt (B) containing, at a mass ratio from 1:99 to 99:1, a zinc dialkyldithiophosphate (B1) and a zinc dialkyldithiocarbamate (B2) as an extreme-pressure additive to a silicone oil (A). A method for transmitting torque of a clutch or a torque limiter mechanism is also disclosed.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: July 19, 2022
    Assignees: DENSO CORPORATION, DUPONT TORAY SPECIALTY MATERIALS KABUSHIKI KAISHA
    Inventors: Yoshinori Fukushima, Koji Sakakibara, Youichi Hasegawa, Makoto Mori, Yuji Masamura
  • Publication number: 20200299607
    Abstract: A silicone grease composition having high friction characteristics and wear characteristics is disclosed. The silicone grease composition is provided by adding a zinc salt (B) containing, at a mass ratio from 1:99 to 99:1, a zinc dialkyldithiophosphate (B1) and a zinc dialkyldithiocarbamate (B2) as an extreme-pressure additive to a silicone oil (A). A method for transmitting torque of a clutch or a torque limiter mechanism is also disclosed.
    Type: Application
    Filed: June 5, 2020
    Publication date: September 24, 2020
    Inventors: Yoshinori FUKUSHIMA, Koji SAKAKIBARA, Youichi HASEGAWA, Makoto MORI, Yuji MASAMURA
  • Publication number: 20200181521
    Abstract: A silicone grease composition is disclosed. The grease composition contains a silicone oil and zinc dialkyldithiocarbamate as an extreme-pressure additive. The grease composition contains substantially no zinc dialkyldithiophosphate. The grease composition achieves high friction characteristics and wear characteristics. A method for transmitting torque of a clutch or a torque limiter mechanism is also disclosed. Moreover, a method for producing a clutch or a torque limiter mechanism is disclosed. The methods utilize the aforementioned grease composition.
    Type: Application
    Filed: February 19, 2020
    Publication date: June 11, 2020
    Inventors: Yoshinori FUKUSHIMA, Youichi HASEGAWA, Yuji MASAMURA, Makoto MORI, Koji SAKAKIBARA
  • Publication number: 20190085257
    Abstract: A silicone grease composition is disclosed. The silicone grease composition contains a silicone oil (A) and zinc dialkyldithiocarbamate (BX) as an extreme-pressure additive. The silicone grease composition contains substantially no zinc dialkyldithiophosphate (BX). The silicone grease composition achieves high friction characteristics and wear characteristics.
    Type: Application
    Filed: January 20, 2017
    Publication date: March 21, 2019
    Inventors: Yoshinori FUKUSHIMA, Youichi HASEGAWA, Yuji MASAMURA, Makoto MORI, Koji SAKAKIBARA
  • Publication number: 20190085260
    Abstract: A silicone grease composition having high friction characteristics and wear characteristics is disclosed. The silicone grease composition is provided by adding a zinc salt (B) containing, at a mass ratio from 1:99 to 99:1, a zinc dialkyldithiophosphate (B1) and a zinc dialkyldithiocarbamate (B2) as an extreme-pressure additive to a silicone oil (A).
    Type: Application
    Filed: January 20, 2017
    Publication date: March 21, 2019
    Inventors: Yoshinori FUKUSHIMA, Youichi HASEGAWA, Yuji MASAMURA, Makoto MORI, Koji SAKAKIBARA
  • Patent number: 10077411
    Abstract: The invention provides a grease composition containing a base oil, a thickener, and an anti-flaking additive such as a compound represented by, for example, formula (1-1), which grease composition can prevent the white layer flaking of the rolling bearings. (In the formula, R1 and R4 are each independently a straight-chain or branched alkyl or alkenyl group having 1 to 20 carbon atoms.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: September 18, 2018
    Assignees: KYODO YUSHI CO., LTD., DENSO CORPORATION
    Inventors: Terasu Yoshinari, Tomonobu Komoriya, Iwaki Hirooka, Masataka Muto, Satoru Nakazawa, Yoshinori Fukushima, Shigeyuki Mori
  • Publication number: 20160177213
    Abstract: The invention provides a grease composition containing a base oil, a thickener, and an anti-flaking additive such as a compound represented by, for example, formula (1-1), which grease composition can prevent the white layer flaking of the rolling bearings. (In the formula, R1 and R4 are each independently a straight-chain or branched alkyl or alkenyl group having 1 to 20 carbon atoms.
    Type: Application
    Filed: August 4, 2014
    Publication date: June 23, 2016
    Applicants: KYODO YUSHI CO., LTD., DENSO CORPORATION
    Inventors: Terasu YOSHINARI, Tomonobu KOMORIYA, Iwaki HIROOKA, Masataka MUTO, Satoru NAKAZAWA, Yoshinori FUKUSHIMA, Shigeyuki MORI
  • Publication number: 20130098325
    Abstract: An air supply device (2) used in a two-stroke engine includes: an insulator (14) having an insulator mixture passage (17) that is in communication with an intake port (5A) provided in an engine body (1) of the two-stroke engine, the insulator being attached to the engine body (1); a carburetor (15) having an insulator mixture passage (17) that is in communication with an insulator mixture passage (17), the carburetor (15) being attached to the insulator (14); an air cleaner (16) having a mixture-side opening (25) that is in communication with the carburetor mixture passage (19), the air cleaner (16) being attached to the carburetor (15); an accumulating portion (29) that accumulates a blow-back fuel returned through the mixture-side opening 25, the accumulating portion (29) being provided inside the air cleaner (16); and an auxiliary passage having a base end connected to the accumulating portion (29) and a distal end connected to a portion affected by a pressure fluctuation inside a crankcase chamber provide
    Type: Application
    Filed: October 13, 2010
    Publication date: April 25, 2013
    Applicant: HUSQVARNA ZENOAH CO., LTD.
    Inventors: Yoshinori Fukushima, Hiroyuki Noda
  • Publication number: 20070216429
    Abstract: A probe card has a plurality of probe needle groups arranged in a predetermined pattern. The predetermined pattern is obtained by assuming a plurality of unit regions 11-14 arranged adjacent to each other to form a chip group region. The number of unit regions is equal in number to indexes. One of the unit regions included in the chip group regions is defined as a specific unit region. A plurality of the chip group regions are arranged without space therebetween to cover a size of a wafer. The arranged chip group regions form a virtual cover pattern. The arrangement of the specific unit regions is extracted to form the predetermined pattern. Each probe needle group is arranged at the position corresponding to each specific unit region of the predetermined pattern.
    Type: Application
    Filed: March 13, 2007
    Publication date: September 20, 2007
    Applicant: ELPIDA MEMORY, INC.
    Inventors: Yoshinori Fukushima, Yosuke Kawamata