Patents by Inventor Wataru Isaka

Wataru Isaka 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: 11331952
    Abstract: A pneumatic tire comprises a mesh reinforcing layer formed from a tape wound circumferentially of the tire plural turns while repeating a zigzag unit comprising two inclined portion so that a number N of the repeated zigzag units are arranged while shifting in the tire circumferential direction and partly overlapping with each other. The amount of positional shift between the circumferentially adjacent zigzag units is in a range from 0.7 to 1.3 times a value of 360/N in terms of the angle ? around the tire rotational axis.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: May 17, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Wataru Isaka
  • Patent number: 11230144
    Abstract: A pneumatic tire comprises a belt layer disposed in the tread portion. The average cord angle ?n and average cord count Nn of the belt layer are constant or gradually increases or decreases from a center position to shoulder positions. The ratio ?ns/?nc of the average cord angle ?ns at the shoulder positions to the average cord angle ?nc at the center position is 1.30 or less. The ratio Nns/Nnc of the average cord count Nns at the shoulder positions to the average cord count Nnc in the center position is 0.77 or more.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: January 25, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Wataru Isaka
  • Publication number: 20200331298
    Abstract: A tire for motorcycles includes a toroidal carcass and a band layer. Carcass plies are overlapped so that carcass cords cross each other. The carcass plies include at least one turned up ply including a main body portion and a turned up portion. The carcass cords of the main body portion are arranged at angles of 20 degrees or more and 70 degrees or less with respect to a tire equator, and the carcass cords of the turned up portion are arranged at angles different from the carcass cords of the main body portion. The band layer includes a jointless band ply in which band cords are spirally arranged at angles of 5 degrees or less with respect to a tire circumferential direction.
    Type: Application
    Filed: March 2, 2020
    Publication date: October 22, 2020
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Wataru ISAKA
  • Patent number: 10807418
    Abstract: A pneumatic tire includes bead portions, each having a bead bottom surface. The bead bottom surface includes a toe-side portion extending axially outwardly from a bead toe at an angle ? in a range of from 17 to 24 degrees with respect to the tire axial direction, a heel-side portion positioned axially outside the toe-side portion and extending axially outwardly at an angle ? in a range of from 3 to 7 degrees with respect to the tire axial direction, and a heel-side arc portion smoothly connecting between the heel-side portion and a flange contacting surface with a radius of curvature (R) in a range of from 1.5 to 3.5 mm.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: October 20, 2020
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Wataru Isaka
  • Patent number: 10612211
    Abstract: A lock mechanism is provided in front of each of left and right consoles to fix the console in an optional position. Each of the lock mechanisms is provided with a lock release lever for selecting a lock state of fixing the console and a lock release state of releasing fixation of the console. Each of the lock release levers is provided to extend outward in a left-right direction from the lock mechanism. The lock state is defined by an inclined posture in which a tip end side of the lock release lever is in an oblique downward direction and the lock release state is defined by a horizontal posture in which the tip end sides of the lock release lever is rotated in an upward direction. A hand hold part is provided in front of each of the consoles and above each of the lock release levers to swing the console in the upper-lower direction in the lock release state.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: April 7, 2020
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Guoliang Yuan, Wataru Isaka
  • Patent number: 10597851
    Abstract: A left operating tool stand (39) disposed on the left side of an operator's seat (15) in a wheel loader (1) includes a support member (32), an operating tool stand (39) rotatably disposed to the support member (32) between an operating position and a tilt-up position, and an operating tool (53) disposed at a front end side of the operating tool stand (39) to operate the wheel loader (1). The operating tool stand (39) includes a rotating member (40) that is rotatably mounted about a support pin (33) as a rotational pivot, the supporting pin (33) being disposed to the support member (32), and a cam roller (50) that is rotatably disposed to the rotating member (40) and rotates together with the rotating member (40).
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: March 24, 2020
    Inventors: Wataru Isaka, Satoshi Kan
  • Publication number: 20190381942
    Abstract: A console box includes a unit, an exterior cover that has an opening into which the unit is fitted, and a fixing mechanism, in which the unit has an engagement piece provided at one end side, and a first through hole provided in the other end side, the exterior cover has a hole which is located on one end side of the opening and into which the engagement piece is inserted, and a second through hole provided at a position of the first through hole in a state where the unit is fitted into the opening at the other end side of the opening, the opening is inclined to cause one end side to be lower than the other end side, the fixing mechanism has an operation portion which is exposed to an external.
    Type: Application
    Filed: September 5, 2018
    Publication date: December 19, 2019
    Inventors: Wataru ISAKA, Takeo MANABE, Saori YAMADA
  • Publication number: 20190225019
    Abstract: A pneumatic tire comprises a mesh reinforcing layer formed from a tape wound circumferentially of the tire plural turns while repeating a zigzag unit comprising two inclined portion so that a number N of the repeated zigzag units are arranged while shifting in the tire circumferential direction and partly overlapping with each other. The amount of positional shift between the circumferentially adjacent zigzag units is in a range from 0.7 to 1.3 times a value of 360/N in terms of the angle ? around the tire rotational axis.
    Type: Application
    Filed: December 6, 2018
    Publication date: July 25, 2019
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Wataru ISAKA
  • Publication number: 20190077196
    Abstract: A pneumatic tire comprises a belt layer disposed in the tread portion. The average cord angle ?n and average cord count Nn of the belt layer are constant or gradually increases or decreases from a center position to shoulder positions. The ratio ?ns/?nc of the average cord angle ?ns at the shoulder positions to the average cord angle ?nc at the center position is 1.30 or less. The ratio Nns/Nnc of the average cord count Nns at the shoulder positions to the average cord count Nnc in the center position is 0.77 or more.
    Type: Application
    Filed: August 17, 2018
    Publication date: March 14, 2019
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Wataru ISAKA
  • Publication number: 20180347148
    Abstract: A left operating tool stand (39) disposed on the left side of an operator's seat (15) in a wheel loader (1) includes a support member (32), an operating tool stand (39) rotatably disposed to the support member (32) between an operating position and a tilt-up position, and an operating tool (53) disposed at a front end side of the operating tool stand (39) to operate the wheel loader (1). The operating tool stand (39) includes a rotating member (40) that is rotatably mounted about a support pin (33) as a rotational pivot, the supporting pin (33) being disposed to the support member (32), and a cam roller (50) that is rotatably disposed to the rotating member (40) and rotates together with the rotating member (40).
    Type: Application
    Filed: December 12, 2016
    Publication date: December 6, 2018
    Inventors: Wataru ISAKA, Satoshi KAN
  • Publication number: 20180282971
    Abstract: A lock mechanism is provided in front of each of left and right consoles to fix the console in an optional position. Each of the lock mechanisms is provided with a lock release lever for selecting a lock state of fixing the console and a lock release state of releasing fixation of the console. Each of the lock release levers is provided to extend outward in a left-right direction from the lock mechanism. The lock state is defined by an inclined posture in which a tip end side of the lock release lever is in an oblique downward direction and the lock release state is defined by a horizontal posture in which the tip end sides of the lock release lever is rotated in an upward direction. A hand hold part is provided in front of each of the consoles and above each of the lock release levers to swing the console in the upper-lower direction in the lock release state.
    Type: Application
    Filed: March 7, 2018
    Publication date: October 4, 2018
    Inventors: Guoliang YUAN, Wataru ISAKA
  • Publication number: 20180134097
    Abstract: A pneumatic tire includes bead portions, each having a bead bottom surface. The bead bottom surface includes a toe-side portion extending axially outwardly from a bead toe at an angle ? in a range of from 17 to 24 degrees with respect to the tire axial direction, a heel-side portion positioned axially outside the toe-side portion and extending axially outwardly at an angle ? in a range of from 3 to 7 degrees with respect to the tire axial direction, and a heel-side arc portion smoothly connecting between the heel-side portion and a flange contacting surface with a radius of curvature (R) in a range of from 1.5 to 3.5 mm.
    Type: Application
    Filed: October 26, 2017
    Publication date: May 17, 2018
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventor: Wataru ISAKA
  • Patent number: 9937678
    Abstract: A method for manufacturing a motorcycle tire includes forming a cylindrical raw tire body including a carcass body including a carcass ply and bead cores on the carcass ply, and forming a cylindrical belt ply wound in a cylindrical shape. The forming of the belt ply includes filling the tire body to expand to first expanded phase, winding a sheet-type belt ply by extending the sheet-type belt ply on bell rings to form the cylindrical belt ply with inner surface bonded to the apex of the tire body, filling the tire body to expand the apex of the tire body along with the belt ply to second expanded phase, increasing diameter of an expandable profile deck to expand the apex of the tire body along with the belt ply to third expanded phase, and winding down edges of the belt ply to bond the belt ply to the tire body.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: April 10, 2018
    Assignee: SUMITOMO RUBBER INDUSTRIES LTD.
    Inventors: Wataru Isaka, Masafumi Otani
  • Publication number: 20160288586
    Abstract: A pneumatic tire for a two-wheeled vehicle includes a tread, side walls, and beads. When the tire is on normal rim and filled to normal internal pressure, each side surface has reference position corresponding to radial direction outer edge of each side surface in contact with the rim, and reference line passing through the reference position and edge of the tread surface such that the reference line is in contact with the rim at the reference position and each side surface extends along the reference line between the reference position and edge of the tread surface, absolute value of angle formed by the reference line and bead base line is from 45 to 75 degrees, and ratio of radial direction height from the reference position to outer edge of the apex, to radial direction height from the reference position to the edge of the tread surface, is 0.5 or more.
    Type: Application
    Filed: April 5, 2016
    Publication date: October 6, 2016
    Applicant: SUMITOMO RUBBER INDUSTRIES LTD.
    Inventor: Wataru ISAKA
  • Publication number: 20150328938
    Abstract: A pneumatic tire includes beads, a carcass and a belt. The carcass ply is turned up around the beads from axially inner sides toward axially outer sides respectively such that the carcass ply includes a main portion bridging the beads and turn-up portions positioned on the axially outer sides of the beads and extending in a radially outward direction, respectively, each of the beads includes a core including wires such that the wires extend in a circumferential direction, the core has two or more strands and turns which are three times a number of the strands or more, the wires have a radially outer edge positioned on a radially inner side of a radially outer edge of a flange of a normal rim when the pneumatic tire is mounted on the normal rim, and each of the turn-up portions has an outer-edge part overlapping an edge portion of the belt.
    Type: Application
    Filed: May 18, 2015
    Publication date: November 19, 2015
    Applicant: SUMITOMO RUBBER INDUSTRIES LTD.
    Inventor: Wataru ISAKA
  • Publication number: 20150273777
    Abstract: A method for manufacturing a motorcycle tire includes forming a cylindrical raw tire body including a carcass body including a carcass ply and bead cores on the carcass ply, and forming a cylindrical belt ply wound in a cylindrical shape. The forming of the belt ply includes filling the tire body to expand to first expanded phase, winding a sheet-type belt ply by extending the sheet-type belt ply on bell rings to form the cylindrical belt ply with inner surface bonded to the apex of the tire body, filling the tire body to expand the apex of the tire body along with the belt ply to second expanded phase, increasing diameter of an expandable profile deck to expand the apex of the tire body along with the belt ply to third expanded phase, and winding down edges of the belt ply to bond the belt ply to the tire body.
    Type: Application
    Filed: March 25, 2015
    Publication date: October 1, 2015
    Applicant: SUMITOMO RUBBER INDUSTRIES LTD.
    Inventors: Wataru Isaka, Masafumi Otani
  • Patent number: 8899129
    Abstract: A tilt-up mechanism for tilting up an upper column of a steering column from a drive position to a tilt-up position is configured independently from a tilt angle adjusting mechanism and a column length adjusting mechanism. When an operator who is to get on/off an operator's seat steps on and operates a pedal of the tilt-up mechanism, an engaged state of a lock pin with respect to a tilt-up member is disengaged. The tilt-up member is rotated around a support shaft, by a spring force of a tilt-up spring, whereby the upper column is tilted up together with a steering wheel in a direction (A) away from the operator's seat. At this time, the tilt angle and the column length can be held at positions adjusted in advance.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: December 2, 2014
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Wataru Isaka, Ei Takahashi, Kazunori Komatsu, Shigeru Kitagami, Yuichi Koshizaka
  • Publication number: 20140109715
    Abstract: A tilt-up mechanism for tilting up an upper column of a steering column from a drive position to a tilt-up position is configured independently from a tilt angle adjusting mechanism and a column length adjusting mechanism. When an operator who is to get on/off an operator's seat steps on and operates a pedal of the tilt-up mechanism, an engaged state of a lock pin with respect to a tilt-up member is disengaged. The tilt-up member is rotated around a support shaft, by a spring force of a tilt-up spring, whereby the upper column is tilted up together with a steering wheel in a direction (A) away from the operator's seat. At this time, the tilt angle and the column length can be held at positions adjusted in advance.
    Type: Application
    Filed: December 14, 2011
    Publication date: April 24, 2014
    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Wataru Isaka, Ei Takahashi, Kazunori Komatsu, Shigeru Kitagami, Yuichi Koshizaka
  • Patent number: D718701
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: December 2, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Wataru Isaka
  • Patent number: D854055
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: July 16, 2019
    Assignee: KCM Corporation
    Inventors: Kazuhiko Hiraoka, Tomoyuki Miyata, Wataru Isaka, Satoshi Kan, Koji Hyodo, Masaki Yoshikawa, Isamu Aoki, Tetsuji Tanaka, Yasunori Miyamoto