586 patents
Page 18 of 30
Utility
Edging method and edging device
12 Oct 20
An edging method including changing an incident angle of a slab with respect to a pair of edging members that are disposed on a conveyance line of the slab and that edge the slab based on information relating to the slab acquired at at least one of prior to edging or after edging.
Yoji Nakamura, Toshiaki Saitoh, Satoru Mashiko, Tetsuo Kishimoto, Akihisa Tsuruta, Tatsuya Nakada, Naoki Kataoka
Filed: 12 May 16
Utility
Steel for induction hardening
12 Oct 20
Akira Shiga, Yutaka Neishi, Kei Miyanishi
Filed: 18 Jul 17
Utility
Fracture prediction method and device, program, and recording medium
12 Oct 20
In a deformation simulation of a member joined by spot welding, an effective width being a width in a direction intersecting a direction of a load centered on a spot welded portion (14) on a flange face (13a) where the spot welded portion (14) is provided of a member (10) and changing correspondingly to a change in the load is calculated every predetermined time interval, and fracture of the spot welded portion (14) is predicted using the calculated effective width.
Takahiro Aitoh, Toshiyuki Niwa, Yoshiyuki Kaseda, Nobuyuki Maniwa
Filed: 2 Feb 17
Utility
Steel for induction hardening
5 Oct 20
A steel for induction hardening according to an aspect includes, as a chemical composition, predetermined amounts of alloy elements and a remainder including Fe and impurities, in which Al×N is 0.000330 to 0.000825, Mn/S is 4.6 to 14.0, a machinability index M is 15.5 to 25.65, an area fraction of AlN having an equivalent circle diameter of more than 200 nm at a ¼ position of a diameter of the steel is 20% or less of an area fraction of all AlN having an equivalent circle diameter of 40 nm or more, and a number density of Mn sulfide-based inclusions having a maximum diameter of 0.3 μm or more and 10 μm or less at the ¼ position of the diameter is 100 pieces/mm2 or more and 2500 pieces/mm2 or less.
Toshiharu Aiso, Suguru Yoshida, Kei Miyanishi
Filed: 19 Feb 15
Utility
Supporting structure for underrun protector
28 Sep 20
This supporting structure for an underrun protector includes a stay body that connects a beam and a frame to each other; a stay reinforcing body that reinforces the stay body from an outside in a vehicle width direction; and a gusset provided between the stay reinforcing body and the beam.
Yutaka Mikazuki, Eiji Isogai, Masahiro Nakata, Kenji Yamamoto
Filed: 23 Aug 17
Utility
Steel sheet
28 Sep 20
A steel sheet includes a predetermined chemical composition, and includes a steel structure represented by, in a volume fraction, tempered martensite and bainite: 70% or more and less than 92% in total, retained austenite: 8% or more and less than 30%, ferrite: less than 10%, fresh martensite: less than 10%, and pearlite: less than 10%.
Kunio Hayashi, Masafumi Azuma
Filed: 20 Sep 16
Utility
Fillet arc welded joint and method for producing same
28 Sep 20
A fillet arc welded joint formed by fillet arc welding at least two metal members, comprising a remelted and solidified portion obtained by irradiating a laser at a weld toe portion of the fillet arc welding of at least one metal member and a region including a boundary of the heat affected zone caused by the fillet arc welding at the surface of that metal member, the remelted and solidified portion being a range from a surface of the metal member to a depth of ½ or less of the thickness of that metal member, an average effective crystal grain diameter of prior austenite at a heat affected zone from a boundary of the remelted and solidified portion at the surface of the metal member to a depth of 0.1 mm in the thickness direction of the metal member being 20 μm or less.
Shinji Kodama, Yujiro Tatsumi, Shoko Oami, Yasuaki Naito
Filed: 27 Jul 16
Utility
Structural member, vehicle-body structure and bumper reinforcement
14 Sep 20
A structural member (10) includes a closed-cross-section structure having a hat member (1) and a closing plate (2), and a reinforcing member (supplementary strengthening member (“SSM”)) (4).
Satoshi Hirose
Filed: 26 Apr 18
Utility
Laser processing apparatus
14 Sep 20
In a laser processing apparatus for refining magnetic domains of a grain-oriented electromagnetic steel sheet by setting a laser beam to be focused on the grain-oriented electromagnetic steel sheet and scanned in a scanning direction, the laser beam focused on the grain-oriented electromagnetic steel sheet is linearly polarized light, and the angle between the linear polarization direction and the scanning direction is equal to or higher than 0° and lower than 45°.
Koji Hirano, Hirofumi Imai, Hideyuki Hamamura, Tatsuhiko Sakai
Filed: 2 Jul 14
Utility
Hat member
14 Sep 20
A hat member 1 includes a top-plate portion 13, first ridges 113, and two side walls 11.
Masahiro Kubo, Yoshiaki Nakazawa, Naruhiko Nomura, Toshiya Suzuki
Filed: 19 Mar 18
Utility
Steel and method of manufacturing the same
14 Sep 20
Steel has a chemical composition that contains 0.050% to 0.40% of C, 0.50% to 3.0% of Si, 3.0% to 8.0% of Mn, and 0.001% to 3.0% of sol.
Koutarou Hayashi, Akira Seki, Kazuya Mishio, Shuhei Shimokawa
Filed: 5 Jan 14
Utility
Hot-dip galvanized cold-rolled steel sheet and process for producing same
14 Sep 20
A hot-dip galvanized cold-rolled steel sheet has a tensile strength of 750 MPa or higher, a composition consisting, in mass percent, C: more than 0.10% and less than 0.25%, Si: more than 0.50% and less than 2.0%, Mn: more than 1.50% and 3.0% or less, and optionally containing one or more types of Ti, Nb, V, Cr, Mo, B, Ca, Mg, REM, and Bi, P: less than 0.050%, S: 0.010% or less, sol.
Norio Imai, Masayuki Wakita, Takuya Nishio, Jun Haga, Kengo Hata, Yasuaki Tanaka, Mitsuru Yoshida, Hiroshi Takebayashi, Suguhiro Fukushima, Toshiro Tomida
Filed: 28 Jun 12
Utility
Threaded joint for steel pipe
14 Sep 20
A pin includes, in order from a free end thereof, a shoulder surface, a first sealing surface, a first male threaded portion, a second sealing surface, and a second male threaded portion.
Keita Inose, Masaaki Sugino, Fumio Ota
Filed: 24 Jan 16
Utility
Threaded joint for steel pipes
14 Sep 20
A threaded joint is constructed of a pin and a box.
Keita Inose, Fumio Ota, Shin Ugai, Suguru Yamaguchi, Masaaki Sugino
Filed: 15 Jun 15
Utility
Bumper beam
7 Sep 20
A bumper beam 100 includes a closing plate 2 and a hat member 1.
Atsuo Koga, Yoshiaki Nakazawa, Satoshi Hirose
Filed: 6 Mar 18
Utility
Nickel material and method for manufacturing nickel material
7 Sep 20
Kiyoko Takeda, Masaaki Terunuma
Filed: 5 Oct 17
Utility
Diagnosis support apparatus, diagnosis support method, diagnosis method, and repair method of vacuum degassing tank
31 Aug 20
This diagnosis support apparatus is a diagnosis support apparatus of a vacuum degassing tank having an immersion tube that extends downward, the diagnosis support apparatus including a camera that is configured to capture an image of an inner circumferential surface of an immersion tube seen from below at an angle in a state of being disposed outside the inner circumferential surface of the immersion tube in a plan view and acquire the image as data and an image processor that is configured to be connected to the camera and carry out image-processing of the data.
Susumu Kudo, Michio Nitta, Masaki Miyashita, Seiya Fujita, Naoki Watabe
Filed: 5 Dec 17
Utility
Panel-like formed product and manufacturing method thereof
31 Aug 20
A manufacturing method includes a preparing step, an intermediate pressing step, a heating step, and a hot stamping step.
Kenichiro Otsuka, Yoshiaki Nakazawa
Filed: 13 Sep 16
Utility
Structural member and vehicle
31 Aug 20
A structural member (10) includes: a hat member (1); and a closing plate (2).
Satoshi Hirose, Yuichi Ishimori, Hiroshi Fukuchi
Filed: 10 Oct 16
Utility
Titanium alloy having high strength, high young's modulus, excellent fatigue properties, and excellent impact toughness
31 Aug 20
Akira Kawakami, Hideki Fujii, Kenichi Mori, Tomoyuki Kitaura
Filed: 27 Nov 14