Patents by Inventor Masaaki Tanaka

Masaaki Tanaka 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: 20210116606
    Abstract: An optical member 10 includes an antireflection coating 12 on a substrate 11. The antireflection coating 12 includes a resin layer 4 and a modified cross-section fiber 1 bound to the resin layer 4. The modified cross-section fiber includes a core and a plurality of protrusions 3 extending from the core. The protrusions 3 of the modified cross-section fiber 1 have extremities protruding from a surface of the resin layer 4.
    Type: Application
    Filed: December 23, 2020
    Publication date: April 22, 2021
    Inventors: Hiroyuki Tanaka, Masaaki Nakabayashi
  • Publication number: 20210107836
    Abstract: The invention provides a ceramic device enabling more complex, elaborate patterns for resistance heating elements or electrodes. A ceramic device includes a ceramic substrate consisting of a ceramic sintered body and including at least a base layer, an intermediate layer laminated over the base layer, and an overlayer laminated over the intermediate layer; and an electrifiable resistance heating element or electrode having a predetermined pattern extending in a planar shape and being embedded in the ceramic substrate. A horizontal surface is defined in the upper surface of the intermediate layer, along which the resistance heating element or electrode is arranged, and the overlayer is laminated onto the upper surface of the intermediate layer to cover the resistance heating element or electrode.
    Type: Application
    Filed: December 25, 2018
    Publication date: April 15, 2021
    Inventors: Kazuhisa Toyofuku, Masaaki TANAKA, Kiminori HORI
  • Patent number: 10967905
    Abstract: A suspension sub frame structure comprises a suspension sub frame provided to extend in a vehicle longitudinal direction and supporting a suspension link, an extension frame provided to extend forwardly from a front end of the suspension sub frame and having lower rigidity against a load applied in the vehicle longitudinal direction than the suspension sub frame, and a cross member provided to extend in a vehicle width direction on an inward side, in the vehicle width direction, of the both frames, wherein the cross member is joined to the both frames at a joint area which is continuous in the vehicle longitudinal direction.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: April 6, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Hiroyuki Okamoto, Masaaki Tanaka
  • Publication number: 20210061992
    Abstract: A resin composition including a thermoplastic resin, glass balloons, and silica particles, wherein a ratio of a content of the glass balloons is 10% by mass or more and 30% by mass or less when a total content of the thermoplastic resin and the glass balloons is 100% by mass, and a ratio of a content of the silica particles is 0.02 parts by mass or more and 5 parts by mass or less when the total content of the thermoplastic resin and the glass balloons is 100 parts by mass.
    Type: Application
    Filed: January 28, 2019
    Publication date: March 4, 2021
    Inventor: Masaaki TANAKA
  • Publication number: 20210009206
    Abstract: A subframe structure includes a subframe disposed below a vehicle body structure of a vehicle, and an extension frame extending forward from the subframe and configured to absorb an impact load from forward of a vehicle body. The subframe has a body part extending in a vehicle front-and-rear direction and a mount support part supporting a power train through a mount. The body part is fixed to the vehicle body structure through the mount support part.
    Type: Application
    Filed: February 12, 2019
    Publication date: January 14, 2021
    Inventors: Hiroyuki Okamoto, Masaaki Tanaka, Masaya Hiramatsu, Yuki Hayakawa
  • Patent number: 10864594
    Abstract: A gas-shielded arc welding method includes feeding a consumable electrode via a welding torch and performing welding while flowing a shielding gas. The welding torch includes a nozzle. An inner diameter of the nozzle is 15 mm or more. A nozzle-base material distance between a tip of the nozzle and a material to be welded is 22 mm or less. A ratio expressed by (the inner diameter of the nozzle/the nozzle-base material distance) is 0.7 or more and 1.9 or less.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: December 15, 2020
    Assignees: Kobe Steel, Ltd., Mazda Motor Corporation
    Inventors: Minoru Miyata, Reiichi Suzuki, Masaaki Tanaka, Mitsugi Fukahori, Takashi Ogawa
  • Patent number: 10790163
    Abstract: In a method for manufacturing a semiconductor sensor, an upper mold has a pair of projections on a wall surface opposing to side surfaces of a semiconductor chip in a first cavity and at positions closest to a second cavity. The projections project so as to reduce the space between the side surfaces of the semiconductor chip and the upper mold, so that a flow of a resin material from a first cavity to a second cavity is delayed. The resin material is filled in the first cavity prior to the second cavity. After a portion of a film corresponding to the first cavity is entirely brought into close contact with the upper mold, the resin material is filled in the second cavity.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: September 29, 2020
    Assignee: DENSO CORPORATION
    Inventor: Masaaki Tanaka
  • Patent number: 10745051
    Abstract: A rear subframe structure is provided with a rear subframe configured such that a front cross member, a rear cross member, a pair of left and right upper side members extending in a vehicle front-rear direction, and a pair of left and right lower side members extending in the vehicle front-rear direction are connected; and a vehicle-body mounting portion formed on each of both ends of the front cross member in the vehicle width direction, and on each of rear ends of the upper side members. The rear subframe further includes a lower-arm support portion formed on a lower lateral portion of the rear cross member, and a stabilizer support member for supporting a stabilizer. The rear cross member connects the upper side members and the lower side members in an up-down direction. The rear cross member includes an upper-surface rear-side projection portion projecting rearwardly.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: August 18, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Masaaki Tanaka, Katsuyuki Komiya
  • Publication number: 20200207417
    Abstract: A rear subframe structure is provided with a rear subframe configured such that a front cross member, a rear cross member, a pair of left and right upper side members, and a pair of left and right lower side members are connected; and a vehicle-body mounting portion formed on each of both ends of the front cross member, and on each of rear ends of the upper side members. The rear subframe further includes a lower-arm support portion formed on a lower lateral portion of the rear cross member, and a stabilizer support member for supporting a stabilizer. The rear cross member connects the upper side members and the lower side members. The rear cross member includes an upper-surface rear-side projection portion projecting rearwardly. The stabilizer support member is mounted between the lower-arm support portion and the upper-surface rear-side projection portion of the rear cross member.
    Type: Application
    Filed: November 2, 2016
    Publication date: July 2, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masaaki TANAKA, Katsuyuki KOMIYA
  • Patent number: 10676133
    Abstract: A tension rod supporting part (14) is provided at a sub-frame front structure (10) of a front part of a front sub-frame (5); the side member (6) is disposed upward in one side and extended rearward from the tension rod supporting part (14); a rack arrangement step (A) opened downward for arranging a steering rack (55) is formed behind the tension rod supporting portion (14) and under the side member (6); and a stabilizer support part (62) is provided in the rack arrangement step (A).
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: June 9, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Katsuyuki Komiya, Masaaki Tanaka
  • Patent number: 10647356
    Abstract: A rear subframe structure is provided with a rear subframe configured such that a front cross member, a rear cross member, a pair of left and right upper side members, and a pair of left and right lower side members are connected; and a vehicle-body mounting portion formed on each of both ends of the front cross member, and on each of rear ends of the upper side members. The rear subframe further includes a pillar portion formed between the upper side member and the lower side member; a first-arm support portion formed on the pillar portion to support a first arm; a second-arm support portion formed on the pillar portion to support a second arm; and an arm support bracket to support the second-arm support portion from a rear side.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: May 12, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Masaaki Tanaka, Katsuyuki Komiya
  • Publication number: 20200130086
    Abstract: A gas shielded arc welding method includes welding a steel sheet with a tensile strength of 780 MPa or more using a shielding gas containing Ar in an amount of 92 vol. % to 99.5 vol. %. In the gas shielded arc welding method, a value calculated from the following expression (1) is 0.20 or more: {?v/(D/2)2}×10?{(100?CAr)×I/v}×0.1 . . . (1), where CAr represents an Ar content (vol. %) in the shielding gas, D represents an inner diameter (mm) of a nozzle from which the shielding gas is supplied, v represents a welding speed (cm/min), and I represents a welding current (A).
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Applicants: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), Mazda Motor Corporation
    Inventors: Ryota Yamasaki, Kazuya Ikai, Masaaki Tanaka, Mitsugi Fukahori
  • Patent number: 10625785
    Abstract: In the front part of the front sub-frame (5), provided are a sub-crash can attachment part (12) and a tension rod supporting part (14); a front vehicle body attachment part (13) is provided between the two parts; the sus-cross member (73) is provided in the front vehicle body attachment part (13) and the tension rod supporting part (14); the front-side vehicle body attaching portion (13) includes a sub crash can load transmitting member (30); and the upper face portion (21) of the front vehicle body attachment part (13) and the partition wall (33) of the sub-crash can load transferring member (30) are spaced apart in the vertical direction and extend in the longitudinal direction of the vehicle.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: April 21, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Katsuyuki Komiya, Masaaki Tanaka
  • Patent number: 10618556
    Abstract: A rear subframe structure is provided with a rear subframe including a front cross member, and a pair of left and right side members connected to the front cross member, and further including a vehicle-body mounting portion formed on both ends of the front cross member. The rear subframe includes a tunnel portion formed in a middle of a lower portion of the front cross member, and a brace extending in the vehicle width direction, and including a tunnel-portion mounting portion on left and right ends thereof. The brace includes a middle downwardly bulging portion bulging downwardly, and an upwardly bulging portion continued outwardly of the middle downwardly bulging portion and bulging upwardly. An inflection point between the middle downwardly bulging portion and the upwardly bulging portion is substantially located on an imaginary line linearly connecting the left and right tunnel-portion mounting portions in the vehicle width direction.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: April 14, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Masaaki Tanaka, Katsuyuki Komiya
  • Patent number: 10604186
    Abstract: A rear subframe structure is provided with a rear subframe configured such that a front cross member, a rear cross member, a pair of left and right upper side members, and a pair of left and right lower side members are connected; and a vehicle-body mounting portion formed on each of both ends of the front cross member, and on each of rear ends of the upper side members. The rear subframe further includes a vertical-wall-shaped pillar portion held and fixed between a lateral portion of the front cross member in the vehicle width direction and the upper side member, and extending in the vehicle width direction. A lower portion of the pillar portion is connected to the lower side member, an upper-arm support portion is formed on an upper portion of the pillar portion, and a lower-arm support portion is formed on a lower portion of the pillar portion.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: March 31, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Masaaki Tanaka, Katsuyuki Komiya
  • Publication number: 20200086920
    Abstract: A suspension sub frame structure comprises a suspension sub frame provided to extend in a vehicle longitudinal direction and supporting a suspension link, an extension frame provided to extend forwardly from a front end of the suspension sub frame and having lower rigidity against a load applied in the vehicle longitudinal direction than the suspension sub frame, and a cross member provided to extend in a vehicle width direction on an inward side, in the vehicle width direction, of the both frames, wherein the cross member is joined to the both frames at a joint area which is continuous in the vehicle longitudinal direction.
    Type: Application
    Filed: September 10, 2019
    Publication date: March 19, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Hiroyuki OKAMOTO, Masaaki TANAKA
  • Patent number: 10562569
    Abstract: A rear subframe structure is provided with a rear subframe configured such that a front cross member, a rear cross member, a pair of left and right upper side members, and a pair of left and right lower side members are connected; and a vehicle-body mounting portion formed. The rear subframe further includes a lower-arm support portion. The front cross member has a closed section, and a front portion of the closed section extends downwardly by forward and downward inclination of a left lateral portion and a right lateral portion of the front cross member. The lower-arm support portion is formed on a lower rear portion of the left lateral portion and the right lateral portion of the front cross member. The upper side member is connected to an upper rear portion of the left lateral portion and the right lateral portion of the front cross member.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: February 18, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Masaaki Tanaka, Katsuyuki Komiya
  • Publication number: 20190148174
    Abstract: In a method for manufacturing a semiconductor sensor, an upper mold has a pair of projections on a wall surface opposing to side surfaces of a semiconductor chip in a first cavity and at positions closest to a second cavity. The projections project so as to reduce the space between the side surfaces of the semiconductor chip and the upper mold, so that a flow of a resin material from a first cavity to a second cavity is delayed. The resin material is filled in the first cavity prior to the second cavity. After a portion of a film corresponding to the first cavity is entirely brought into close contact with the upper mold, the resin material is filled in the second cavity.
    Type: Application
    Filed: January 17, 2019
    Publication date: May 16, 2019
    Inventor: Masaaki TANAKA
  • Publication number: 20190061821
    Abstract: A rear subframe structure is provided with a rear subframe configured such that a front cross member, a rear cross member, a pair of left and right upper side members, and a pair of left and right lower side members are connected; and a vehicle-body mounting portion formed on each of both ends of the front cross member, and on each of rear ends of the upper side members. The rear subframe further includes a pillar portion formed between the upper side member and the lower side member; a first-arm support portion formed on the pillar portion to support a first arm; a second-arm support portion formed on the pillar portion to support a second arm; and an arm support bracket to support the second-arm support portion from a rear side.
    Type: Application
    Filed: November 2, 2016
    Publication date: February 28, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Masaaki TANAKA, Katsuyuki KOMIYA
  • Patent number: 10124436
    Abstract: Disclosed is a welded structural member production method comprises: a first preparation step of preparing a cross-sectionally hat-shaped first metal workpiece which has a first base wall, a pair of first standing walls and a pair of flanges; a second preparation step of preparing a cross-sectionally U-shaped second metal workpiece which has a second base wall, and a pair of second standing walls; a positioning step of positioning the first metal workpiece and the metal workpiece in such a manner that each of two pairs of distal edges of the second standing walls and inner edge regions of the flanges are butted against each other; and a joining step of externally welding a butted region of each of the pairs of the distal edges of the second standing walls and the inner edge regions of the flanges to thereby join the first and second metal workpieces together.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: November 13, 2018
    Assignee: MAZDA MOTOR CORPORATION
    Inventor: Masaaki Tanaka