1
Toyotake Kotaro, Iwaya Koji, Minami Tomoyuki, Takamura Noritoshi: Seamless steel tube, and its manufacturing method. Shinko Metal Products, Nhk Spring, May 24, 2007: JP2007-125588 (3 worldwide citation)

PROBLEM TO BE SOLVED: To provide a seamless steel tube having high durability, and a seamless steel tube manufacturing method capable of manufacturing the seamless steel tube with excellent production efficiency and high quality at low cost.SOLUTION: The seamless steel tube 1 is the seamless steel t ...


2
Masaharu Furutani: Method for manufacturing a clad metal column for a linear motor. Shinko Metal Products, Armstrong Westerman Hattori McLeland & Naughton, June 21, 1994: US05323073 (2 worldwide citation)

A method of manufacturing a clad metal column for linear motor, wherein a core material provided with a convex-and-concave pattern consisting of many longitudinal, transverse, or slanted grooves, or the combination thereof on its peripheral surface is inserted into a pipe made of a good conductor, a ...


3
Takamura Noritoshi, Toyotake Kotaro, Iwaya Koji, Minami Tomoyuki: Hollow spring. Nhk Spring, Shinko Metal Products, May 24, 2007: JP2007-127227 (2 worldwide citation)

PROBLEM TO BE SOLVED: To make a light weight effect and the increase of the fatigue strength of a hollow spring compatible.SOLUTION: Surface treatment for giving compression residual stress is applied to a coil-like hollow body using a seamless spring steel pipe obtained by extrusion-processing a sp ...


4
Matsukado Katsuhiro, Kato Atsushi, Toyotake Kotaro, Iwaya Koji, Minami Tomoyuki: High strength magnesium alloy extruded material. Kobe Steel, Shinko Metal Products, May 10, 2007: JP2007-113037 (2 worldwide citation)

PROBLEM TO BE SOLVED: To provide an Mg-Al-Zn alloy material which has ≥300 MPa tensile strength and uniform mechanical properties and can be easily manufactured by extrusion.SOLUTION: This Mg-Al-Zn alloy material includes: (1) a high strength magnesium alloy extruded material which has a composition ...


5
Toyotake Kotaro: 積層複合管 (JA), Multilayered tube (EN). Shinko Metal Products, Kotani Etsuji, September 16, 2010: WO/2010/103813 (1 worldwide citation)

Provided is a multilayered tube by which a heat insulation effect and a vibration suppression effect can be obtained, and the structure of an exhaust system using the multilayered tube can be further compacted to a conventional exhaust system. A multilayered tube (1) to be connected to a vibration s ...


6
Toyotake Kotaro, Iwaya Koji, Minami Tomoyuki, Takamura Noritoshi: (Ja) シームレス鋼管、シームレス鋼管を用いた中空ばねおよびその製造方法, (En) Seamless steel pipe, hollow spring utilizing seamless steel pipe, and process for manufacturing the same. Shinko Metal Products, Nhk Spring, Toyotake Kotaro, Iwaya Koji, Minami Tomoyuki, Takamura Noritoshi, ISONO Michizo, September 18, 2008: WO/2008/111200 (1 worldwide citation)

(EN) A highly durable seamless steel pipe; a hollow spring utilizing the seamless steel pipe; and a process for manufacturing a seamless steel pipe in which such a seamless steel pipe can be manufactured while ensuring high production efficiency, high product quality and low cost. There is provided ...


7
Teruo Anraku, Masayuki Ainoya, Tomohiro Kubota, Kotaro Toyotake, Tomoyuki Minami, Noritoshi Takamura, Humio Takahashi: Alloy material, contact probe, and connection terminal. Yamamoto Precious Metal, Shinko Metal Products, NHK Spring, Locke Lord, October 31, 2017: US09804198

An alloy material includes: a composition containing 17 at % to 25 at % of silver (Ag), 30 at % to 45 at % of palladium (Pd), and 30 at % to 53 at % of copper (Cu) in a composition range of a ternary alloy of Ag, Pd, and Cu; and at least one of manganese (Mn), tin (Sn), silicon (Si), antimony (Sb), ...


8
Kotaro Toyotake, Koji Iwaya, Tomoyuki Minami, Noritoshi Takamura: Hollow spring utilizing seamless steel pipe. SHINKO METAL PRODUCTS, NHK SPRING, Merchant & Gould P C, November 6, 2018: US10118208

There are provided: a seamless steel pipe formed from a cylindrical steel material billet through a hot isostatic extrusion step, wherein a depth of a contiguous flaw formed on an inner periphery surface and an outer periphery surface of the steel pipe is 50 μm or less; a hollow spring obtained by f ...


9
Kotaro Toyotake, Koji Iwaya, Tomoyuki Minami, Noritoshi Takamura: Process for manufacturing seamless steel pipe, hollow spring utilizing seamless steel pipe. SHINKO METAL PRODUCTS, NHK SPRING, Merchant & Gould P C, November 1, 2016: US09482302

There are provided: a seamless steel pipe formed from a cylindrical steel material billet through a hot isostatic extrusion step, wherein a depth of a contiguous flaw formed on an inner periphery surface and an outer periphery surface of the steel pipe is 50 μm or less; a hollow spring obtained by f ...


10
Takuya Kochi, Hitoshi Hatano, Eiichi Tamura, Kotaro Toyotake: Seamless steel pipe for hollow spring. KABUSHIKI KAISHA KOBE SEIKO SHO, SHINKO METAL PRODUCTS, Oblon McClelland Maier & Neustadt L, May 16, 2017: US09650704

A seamless steel pipe for a hollow spring includes C: 0.2 to 0.7 mass %, Si: 0.5 to 3 mass %, Mn: 0.1 to 2 mass %, Cr: 3 mass % or less (excluding 0 mass %), Al: 0.1 mass % or less (excluding 0 mass %), P: 0.02 mass % or less (excluding 0 mass %), S: 0.02 mass % or less (excluding 0 mass %) and N: 0 ...