586 patents
Page 28 of 30
Utility
Titanium product, separator, and proton exchange membrane fuel cell, and method for producing titanium product
9 Dec 19
A titanium product for a separator of a proton exchange membrane fuel cell according to the present invention includes: a base material that consists of commercially pure titanium; a first oxide layer that is formed in a surface layer of the titanium product, consists of TiO2 of a rutile crystallinity, and has a thickness of 0.1 to 1.5 nm; and a second oxide layer that is formed between the base material and the first oxide layer, consists of TiOx (1<x<2), and has a thickness of 3 to 20 nm.
Junko Imamura, Yoshitaka Nishiyama, Yasuhiro Masaki, Jun Maki, Shunsuke Taniguchi, Hideya Kaminaka
Filed: 2 Mar 16
Utility
Crash energy absorbing part
2 Dec 19
To provide a crash energy absorbing part which is light in weight, and in which collapsing deformation into a bellows shape occurs more stably even when a crash load is applied in a direction crossing the shock-absorbing direction of the crash energy absorbing part.
Atsuo Koga, Kenichiro Tadokoro
Filed: 25 Nov 14
Utility
Rail
2 Dec 19
The present invention relates to a rail which has a predetermined chemical composition and satisfies expressions of 1.00<Mn/Cr≤4.00 and 0.30≤0.25×Mn+Cr≤1.00 and in which a structure to a depth of 25 mm from an outer surface of a head portion as the origin includes 95% or greater of a pearlite structure, the hardness of the structure is in a range of Hv 350 to 480, 50 to 500 V carbonitride having an average grain size of 5 to 20 nm are present per 1.0 μm2 of an area to be inspected in a transverse cross section at a position having a depth of 25 mm from the outer surface of the head portion, and the value obtained by subtracting the hardness of the position having the depth of 25 mm from the outer surface of the head portion from the hardness of the position having a depth of 2 mm from the outer surface of the head portion is in a range of Hv 0 to Hv 40.
Masaharu Ueda, Takuya Tanahashi, Teruhisa Miyazaki
Filed: 21 Jan 16
Utility
Press-molded article manufacturing method and press apparatus
2 Dec 19
A method of manufacturing a press-molded article includes: projecting an inner pad, provided at an apex portion of a punch, from the punch toward a side of a die, and disposing a metal sheet blank on the inner pad; and projecting a die pad, provided at the die, from the die toward a side of the punch to dispose the die pad at a position separated from the inner pad by a predetermined distance that is greater than a plate thickness of the metal sheet blank; forming a side walls by moving the die toward the punch side relative to the die pad, the inner pad, and the punch, and integrating the die pad with the die; and forming a top plate by moving the die and the die pad, which have been integrated, and the inner pad, toward the punch side relative to the punch.
Toshiya Suzuki, Yoshiaki Nakazawa, Masahiro Nakata
Filed: 18 Jan 17
Utility
Composition for solid coating formation and tubular threaded joint
2 Dec 19
A composition for solid coating formation, includes a mixed solvent including water and a dipolar aprotic solvent, a powdery organic resin which is partially soluble at least in the dipolar aprotic solvent.
Kunio Goto
Filed: 18 Jul 18
Utility
Threaded joint for steel pipe
2 Dec 19
Keita Inose, Masaaki Sugino, Sadao Douchi
Filed: 1 Nov 16
Utility
Steel sheet member combination structure, automotive structural member, center pillar, bumper, and door beam
25 Nov 19
A steel sheet member combination structure includes: a first steel sheet member having a main wall portion, a standing wall portion that stands from an end edge of the main wall portion, and a flange portion that extends parallel to the main wall portion from an end edge of the standing wall portion; and a second steel sheet member having a horizontal wall portion that is joined to at least one of an inner surface or an outer surface of the first steel sheet member and that abuts the main wall portion and a side wall portion that abuts the standing wall portion, and the first steel sheet member and the second steel sheet member satisfy predetermined relational expressions.
Koichi Hamada, Atsushi Ono, Yasunori Ito
Filed: 18 Aug 16
Utility
Eddy current retarder with electricity generating function
25 Nov 19
An eddy current retarder includes a brake drum, a magnet retention ring, and a switch mechanism.
Kenji Imanishi, Hiroyuki Yamaguchi, Shotaro Kadokawa, Takuya Fujita, Hiroshi Nogami
Filed: 4 Feb 15
Utility
High-carbon steel wire rod with excellent wire drawability
25 Nov 19
Provided is a high-carbon steel wire rod with excellent wire drawability, containing predetermined chemical components and the balance: Fe and impurities.
Makoto Okonogi, Daisuke Hirakami
Filed: 2 Aug 15
Utility
Method for producing a heat transfer tube for steam generator using drawing, solution heat treatment, and straightening
25 Nov 19
A method for producing a heat transfer tube for a steam generator comprises a step of providing a tube and then applying cold drawing to the tube by using a high-pressure lubricating oil of 40 MPa or more in pressure.
Masatoshi Toyoda, Kouichi Kuroda
Filed: 24 Jun 18
Utility
Steel pipe for line pipe and method of manufacturing the same
25 Nov 19
A steel pipe for line pipe has a composition of, in mass %: C: 0.02 to 0.11%; Si: 0.05 to 1.0%; Mn: 0.30 to 2.5%; P: up to 0.030%; S: up to 0.006%; Cr: 0.05 to 0.36%; Mo: 0.02 to 0.33%; V: 0.02 to 0.20%; Ti: 0.001 to 0.010%; Al: 0.001 to 0.100%; N: up to 0.008%; Ca: 0.0005 to 0.0040%; and other elements and satisfies Cr+Mo+V≤0.40, the chemical symbols in the equation substituted by the content of the corresponding element in mass %.
Taro Oe, Keiichi Kondo, Hiroki Kamitani, Yuji Arai
Filed: 22 Jun 16
Utility
High-strength bolt
25 Nov 19
Yutaka Neishi, Naoyuki Sano, Naoki Matsui
Filed: 14 Nov 16
Utility
Seamless steel pipe for line pipe and method for producing the same
18 Nov 19
A seamless steel pipe for line pipe has a chemical composition consisting, by mass percent, of C: 0.03-0.15%, Si: ≤0.50%, Mn: 1.0-2.0%, P: ≤0.050%, S: ≤0.005%, Cr: 0.1-1.0%, Al: 0.001-0.10%, N: ≤0.01%, Ni: 0.05-2.0%, B: 0.0003-0.0015%, Ca: 0.0002-0.0050%, Mo: 0.10-0.50%, Ti: 0.001-0.05%, Cu: 0-2.0%, Nb: 0-0.05%, V: 0-0.10%, the balance: Fe and impurities, and satisfying the conditions of 2Nb+4V+Mo≤0.50, wherein a metal micro-structure of the steel pipe contains 50% or more of bainite, in an area fraction, a wall thickness of the steel pipe is 25 mm or larger, and in a scale formed on the surface of the steel pipe, metal particles consisting mainly of Ni or Cu having an average circle-equivalent diameter of 0.1-5 mm exist.
Yuji Arai, Yukimasa Ueda
Filed: 11 May 15
Utility
Threaded connection for pipe or tube and method for producing the threaded connection for pipe or tube
18 Nov 19
The present invention has an objective to provide a threaded connection for pipe or tube including a pin and a box, having excellent galling resistance, torque property, and anticorrosion property, and still having an excellent adhesiveness with a lubricating coating even when being repeatedly exposed to high temperature and very low temperature, and to provide a method for producing the threaded connection for pipe or tube.
Kunio Goto
Filed: 15 Dec 16
Utility
Titanium sheet and method for producing the same
18 Nov 19
A titanium sheet has a chemical composition containing, in mass %, Cu: 0.1 to 1.0%, Ni: 0.01 to 0.20%, Fe: 0.01 to 0.10%, O: 0.01 to 0.10%, Cr: 0 to 0.20%, the balance: Ti and unavoidable impurities, and satisfying 0.04≤0.3Cu+Ni≤0.44%.
Hidenori Takebe, Yoshihisa Shirai
Filed: 29 Feb 16
Utility
Metal pipe and structural member using metal pipe for vehicle
18 Nov 19
A metal pipe includes a pair of side walls facing each other and having a height H, a top portion connected to an upper edge of each of the pair of side walls, and a bottom portion connected to a lower edge of each of the pair of side walls.
Satoshi Hirose, Yuichi Ishimori, Hiroshi Fukuchi
Filed: 4 Jun 17
Utility
Threaded joint for steel pipes
18 Nov 19
A threaded joint is constructed of a pin and a box.
Yousuke Oku, Tatsuya Yamamoto
Filed: 18 Jun 15
Utility
Pressed component manufacturing method, press, and press line
11 Nov 19
Disclosed is a method to manufacture a pressed component from an intermediate stock, which includes two bent portions with a spacing thereof narrower than a width of a top plate of the pressed component, by employing a press including a die having a die pad and a punch having an inner pad, the method including: gripping a portion between the bent portions with the inner pad and the die pad in a state in which the inner pad projects from the punch and the die pad projects from the die; moving the die toward the punch side to form vertical walls of the pressed component with the die and the punch; and integrating the die and the die pad and then moving the die, the die pad and the inner pad toward the punch side to form the top plate.
Toshiya Suzuki, Yoshiaki Nakazawa, Masahiro Nakata
Filed: 6 Dec 16
Utility
Threaded joint for steel pipes
11 Nov 19
The load flanks in the male threaded portion of the pin and the load flanks in the female threaded portion of the box have a flank angle of less than 0 degrees.
Keita Inose, Fumio Ota, Shin Ugai, Masaaki Sugino
Filed: 8 Jan 15
Utility
Method of production of brazed joint and such a brazed joint
11 Nov 19
A brazed joint having excellent tensile strength (TSS and CTS) and a method of production of the same are provided.
Tasuku Zeniya, Hitomi Nishibata, Masanori Yasuyama
Filed: 1 Oct 15