Patents by Inventor Masayuki Sakamoto
Masayuki Sakamoto 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).
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Publication number: 20240095850Abstract: A non-transitory computer-readable storage medium storing therein an information management program for causing a computer to execute a process comprises: receiving property information indicating a reliability of a post uploaded on the Internet and a digital signature generated from the property information; and storing the property information, to which identification information of the post and the digital signature are added, in a storage.Type: ApplicationFiled: June 12, 2023Publication date: March 21, 2024Applicants: Fujitsu Limited, KEIO UNIVERSITYInventors: Takuya SAKAMOTO, Kazuaki NIMURA, Ryuichi MATSUKURA, Koji NAKAMICHI, Masayuki FUKUI, Shigeya SUZUKI, Osamu NAKAMURA, Ryosuke ABE
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Publication number: 20230182420Abstract: A tire repairing apparatus includes: a tire support portion rotatably supporting a pneumatic tire; and an application mechanism configured to apply an additive that has a softening effect, to a tread portion of the pneumatic tire supported by the tire support portion, thereby causing the additive to permeate into the tread portionType: ApplicationFiled: February 8, 2021Publication date: June 15, 2023Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Saki OKUDAIRA, Takayuki NAGASE, Masayuki SAKAMOTO, Yuichi TAKAI, Kotaro HIROSE
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Patent number: 11104053Abstract: The extruder includes: a cylinder having a first end portion and a second end portion respectively formed at two ends of the cylinder in an axial direction, and an ejection port formed in the first end portion; a screw including a shaft that is configured to rotate within the cylinder, and a screw blade that is provided on an outer circumferential surface of the shaft; a supplier that is attached to the second end portion side of the cylinder and is configured to supply a kneading target to an inside of the cylinder; and a plurality of protruding members that protrude from an inner wall surface of the cylinder.Type: GrantFiled: October 18, 2016Date of Patent: August 31, 2021Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masayuki Sakamoto, Tomoo Tanaka, Takuma Konishi
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Patent number: 11097447Abstract: A method for producing a rubber member according to the present invention includes the steps of: supplying a rubber composition to a cylinder provided in an extruder; extruding the rubber composition to a downstream side of the cylinder while kneading the rubber composition in an internal space of the cylinder that includes a plurality of protruding members protruding from an inner wall surface of the cylinder; compressing the rubber composition at least once in the step of extruding the rubber composition to the downstream side; discharging a gas generated from the compressed rubber composition to outside of the cylinder; discharging, through a discharge outlet of the cylinder, the rubber composition after the gas has been generated; and molding the rubber composition that has been discharged through the discharge outlet into a predetermined rubber member shape.Type: GrantFiled: January 12, 2017Date of Patent: August 24, 2021Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Tomoo Tanaka, Masayuki Sakamoto, Takafumi Taguchi, Sakae Okubo, Takuma Konishi
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Patent number: 10898140Abstract: A tomographic image forming apparatus is disclosed, which divides light output from a light source inside the apparatus into measurement light and reference light, and which generates a cross-sectional image of an imaging target, based on light intensity of interference light obtained from reflected light obtained by emitting the measurement light to the imaging target and the reference light. A second image is generated by converting a first image in which line data generated based on the light intensity and having information in a direction of a first axis which serves as a depth direction of the imaging target is arranged in a direction of a second axis, into a frequency domain. An artifact is removed or reduced by performing filtering on the second image. A third image is generated by inversely converting the processed second image into a spatial domain.Type: GrantFiled: March 23, 2017Date of Patent: January 26, 2021Assignee: TERUMO KABUSHIKI KAISHAInventor: Masayuki Sakamoto
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Patent number: 10705014Abstract: An image diagnosis apparatus determines an effective pulse based on a pulse signal corresponding to the rotation of an imaging core from a pulse signal corresponding to an A line indicating a period of a light source and switches the polarization state of light transmitted from an optical transceiver according to the effective pulse. According to the effective pulse, the image diagnosis apparatus acquires a signal of interference light between the light received by the optical transceiver and reference light.Type: GrantFiled: March 27, 2019Date of Patent: July 7, 2020Assignee: TERUMO KABUSHIKI KAISHAInventors: Masayuki Sakamoto, Isao Mori
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Publication number: 20200147564Abstract: To provide a rubber extruder capable of efficiently removing volatile components in unvulcanized rubber without decreasing productivity of the unvulcanized rubber. The rubber extruder 1 is for extruding the unvulcanized rubber (G) while kneading. It includes a barrel 2 having an input port 5 for introducing the unvulcanized rubber (G) and a discharge port 6 for discharging the unvulcanized rubber (G), a screw 3, which is arranged in the barrel 2, for extruding the unvulcanized rubber (G), and a vent 4 for sucking out air in the barrel 2. The screw 3 has a dam portion 7 which locally controls an extrusion amount of the unvulcanized rubber (G), a first screw portion 8 defined between the input port 5 and the dam portion 7, and a second screw portion 9 defined between the dam portion 7 and the discharge port 6. An effective screw length (L1) of the first screw portion 8 is 50% or more of a total effective screw length (L) of the screw 3.Type: ApplicationFiled: May 16, 2018Publication date: May 14, 2020Applicants: Sumitomo Rubber Industries, Ltd., Nakata Engineering Co., Ltd.Inventors: Tomoo TANAKA, Yoshinobu NAKAMURA, Masayuki SAKAMOTO, Tadasuke SATO, Ryusuke OTA, Hideaki TAKEUCHI, Masaaki MICHIBAYASHI, Makoto NODA
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Patent number: 10555723Abstract: A control method, computer readable medium, and imaging apparatus for diagnosis being configured to create a tomographic image are disclosed. The method includes obtaining ultrasound line data oriented in a radial direction from a rotation center based on a signal obtained by executing the scanning; obtaining optical interference line data oriented in a radial direction from the rotation center based on a signal obtained by executing the scanning; identifying a line or a group of lines having a same feature out of each line data of the ultrasound tomographic image and the optical tomographic image; determining segmentation positions for a bundle of lines corresponding to at least a single frame included in each tomographic image from each line data of the ultrasound tomographic image and the optical tomographic image with respect to the identified line or group of lines; and creating a tomographic image from the determined bundle of lines.Type: GrantFiled: September 15, 2017Date of Patent: February 11, 2020Assignee: TERUMO KABUSHIKI KAISHAInventor: Masayuki Sakamoto
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Patent number: 10538047Abstract: A pneumatic tire manufacturing method is provided in which raw cover molding is suitably performed with no, or a minimal amount of, down-stitching in the manufacture of SOT-structure pneumatic tires; also provided is a pneumatic tire. This pneumatic tire manufacturing method involves a first cover molding step for molding a first cover having a sidewall, an inner lining, a ply, beads and a tread-side edge, a tread ring forming step for forming a tread ring having a breaker, a band and a tread center part, a shaping step for pressure-bonding the tread ring and the first cover to mold this to the shape of the raw cover, and a turn-up step for bonding the side wall to the lateral surface of the first cover, wherein the tread-side edge is formed in a position adjacent to the end of the tread center portion in the shaping step, and in the turn-up step, the tread-side edge and the tread center part are bonded together.Type: GrantFiled: November 4, 2015Date of Patent: January 21, 2020Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masayuki Sakamoto, Takamichi Sagawa
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Patent number: 10538046Abstract: A pneumatic tire manufacturing method is provided in which winding collapse is prevented, there is no possibility of adverse effects on the FV, a current-carrying layer can be formed easily, and down-stitching can be dispensed with or minimized in the manufacture of SOT-structure pneumatic tires having a base-pen structure in the tread.Type: GrantFiled: November 4, 2015Date of Patent: January 21, 2020Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masayuki Sakamoto, Kenji Ueda, Takamichi Sagawa
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Patent number: 10532615Abstract: A pneumatic tire manufacturing method is provided in which raw cover molding is suitably performed with no, or a minimal amount of, down-stitching in the manufacture of SOT-structure pneumatic tires; also provided is a pneumatic tire. This pneumatic tire manufacturing method involves: a step in which a sidewall, an inner liner, and a ply are bonded on a first molding drum, a pair of beads is set, and the tread side part is formed on the side wall, forming a first cover; a step in which a breaker and band are bonded on a second molding drum and the tread center part is formed on the band, shaping the tread ring; a step in which the first cover is inserted inside of the tread ring and the first cover is inflated, bonding the tread ring and the first cover with pressure; and a step in which the sidewall is folded back towards the lateral surface of the inflated first cover and bonded to the lateral surface of the first cover, and the tread side part and the tread center part are bonded together.Type: GrantFiled: November 4, 2015Date of Patent: January 14, 2020Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masayuki Sakamoto, Takamichi Sagawa
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Publication number: 20190358855Abstract: A method for producing a rubber member according to the present invention includes the steps of: supplying a rubber composition to a cylinder provided in an extruder; extruding the rubber composition to a downstream side of the cylinder while kneading the rubber composition in an internal space of the cylinder that includes a plurality of protruding members protruding from an inner wall surface of the cylinder; compressing the rubber composition at least once in the step of extruding the rubber composition to the downstream side; discharging a gas generated from the compressed rubber composition to outside of the cylinder; discharging, through a discharge outlet of the cylinder, the rubber composition after the gas has been generated; and molding the rubber composition that has been discharged through the discharge outlet into a predetermined rubber member shape.Type: ApplicationFiled: January 12, 2017Publication date: November 28, 2019Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Tomoo TANAKA, Masayuki SAKAMOTO, Takafumi TAGUCHI, Sakae OKUBO, Takuma KONISHI
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Publication number: 20190219496Abstract: An image diagnosis apparatus determines an effective pulse based on a pulse signal corresponding to the rotation of an imaging core from a pulse signal corresponding to an A line indicating a period of a light source and switches the polarization state of light transmitted from an optical transceiver according to the effective pulse. According to the effective pulse, the image diagnosis apparatus acquires a signal of interference light between the light received by the optical transceiver and reference light.Type: ApplicationFiled: March 27, 2019Publication date: July 18, 2019Applicant: TERUMO KABUSHIKI KAISHAInventors: Masayuki SAKAMOTO, Isao MORI
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Publication number: 20190193036Abstract: A rubber extruding device for kneading and extruding unvulcanized rubber material, the rubber extruding device includes a mixer for kneading unvulcanized rubber material in a substantially closed mixing chamber, and an extruder comprising a rotatable screw shaft for kneading further the unvulcanized rubber material received from the mixer and for extruding the same, and at least one deaerator for sucking up a gas in the extruder.Type: ApplicationFiled: December 4, 2018Publication date: June 27, 2019Applicant: Sumitomo Rubber Industries, Ltd.Inventor: Masayuki SAKAMOTO
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Patent number: 10328651Abstract: A technique for easily taking out a main body of a core mold is proposed. An annular core-mold main portion 11 having a molding surface 18 for shaping an inner surface of a pneumatic tire is included, and the core-mold main portion 11 is composed of a plurality of segments each of which is taken out toward the inside in a radial direction. In the molding surface 18 of the core-mold main portion 11, a ratio Bd/W of a maximum width W lying in regions for shaping sidewall portions and a width Bd in the tire axial direction measured at toe-end shaping positions 18e for shaping toe ends of bead portions is not less than 0.80. In an inside zone 30 from the toe-end shaping position 18e of the molding surface 18 to the position of the maximum width W, the angle ? of a tangent T drawn to the molding surface 18 is not more than 15 degrees.Type: GrantFiled: September 12, 2013Date of Patent: June 25, 2019Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventor: Masayuki Sakamoto
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Patent number: 10239269Abstract: According to the present invention, the cycle time is reduced for a core removal step while suppressing displacement of the affixing position for the rubber member during a green-tire forming step. This rigid core has a ring-shaped core body having a tire forming surface for molding the inner surface of a pneumatic tire. The core body is formed from a plurality of core segments that are split in the circumferential direction and movable in the tire radius direction. The surface roughness (Ra) of the outer surface of the core segments forming the tire forming surface is 2.0-20.0 ?m.Type: GrantFiled: August 20, 2013Date of Patent: March 26, 2019Assignee: SUMITOMO RUBBER INDUSTRIES LTD.Inventor: Masayuki Sakamoto
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Patent number: 9956829Abstract: A pneumatic tire 1 is provided in a bead portion 4 with a bead core 5 formed of a bead wire 20. The bead core 5 has a wound single bead wire structure formed from turns of the single bead wire 20, and has at least three wire layers 10. Each side face of the bead core 5 has a shape such that it is possible to draw a common tangent 30 to at least two turns of the bead wire 20 appearing in the side face 51 which common tangent is substantially parallel with the tire radial direction. The turns of the bead wire 21 in the 1st wire layer 11 are alternated with the turns of the bead wire 22 in the 2nd wire layer 12 disposed on the outside of the 1st wire layer 11. The 1st wire layer 11 includes a turn 21 having the winding-start end 16 of the bead wire, which turn 21 is positioned between adjacent two turns 22 of the bead wire in the 2nd wire layer 12.Type: GrantFiled: February 3, 2015Date of Patent: May 1, 2018Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masayuki Sakamoto, Kenji Ueda
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Publication number: 20180014815Abstract: A control method, computer readable medium, and imaging apparatus for diagnosis being configured to create a tomographic image are disclosed. The method includes obtaining ultrasound line data oriented in a radial direction from a rotation center based on a signal obtained by executing the scanning; obtaining optical interference line data oriented in a radial direction from the rotation center based on a signal obtained by executing the scanning; identifying a line or a group of lines having a same feature out of each line data of the ultrasound tomographic image and the optical tomographic image; determining segmentation positions for a bundle of lines corresponding to at least a single frame included in each tomographic image from each line data of the ultrasound tomographic image and the optical tomographic image with respect to the identified line or group of lines; and creating a tomographic image from the determined bundle of lines.Type: ApplicationFiled: September 15, 2017Publication date: January 18, 2018Applicant: TERUMO KABUSHIKI KAISHAInventor: Masayuki SAKAMOTO
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Publication number: 20170313006Abstract: A pneumatic tire manufacturing method is provided in which raw cover molding is suitably performed with no, or a minimal amount of, down-stitching in the manufacture of SOT-structure pneumatic tires; also provided is a pneumatic tire. This pneumatic tire manufacturing method involves a first cover molding step for molding a first cover having a sidewall, an inner lining, a ply, beads and a tread-side edge, a tread ring forming step for forming a tread ring having a breaker, a band and a tread center part, a shaping step for pressure-bonding the tread ring and the first cover to mold this to the shape of the raw cover, and a turn-up step for bonding the side wall to the lateral surface of the first cover, wherein the tread-side edge is formed in a position adjacent to the end of the tread center portion in the shaping step, and in the turn-up step, the tread-side edge and the tread center part are bonded together.Type: ApplicationFiled: November 4, 2015Publication date: November 2, 2017Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masayuki SAKAMOTO, Takamichi SAGAWA
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Publication number: 20170305090Abstract: A pneumatic tire manufacturing method is provided in which winding collapse is prevented, there is no possibility of adverse effects on the FV, a current-carrying layer can be formed easily, and down-stitching can be dispensed with or minimized in the manufacture of SOT-structure pneumatic tires having a base-pen structure in the tread.Type: ApplicationFiled: November 4, 2015Publication date: October 26, 2017Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masayuki SAKAMOTO, Kenji UEDA, Takamichi SAGAWA