Patents by Inventor Isao Nagai
Isao Nagai 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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Patent number: 10046330Abstract: A regenerated cutting blade to be mounted and used in a shearing type grinder. The cutting blade includes a fixed part and a blade tip projecting outward from this fixed part, in which the blade tip has a leading edge pointed toward the rotating direction. Side edges 110 on the lateral side outer periphery including the blade tip, the leading end edge and the side edges are regenerated and formed by build-up welding. The lateral sides are provided with slip preventive build-up welding parts 111, 112, 113 extending from the side edges 110 toward the central side of its rotation or the central direction, and the build-up welding parts are formed by three regenerating processes.Type: GrantFiled: August 28, 2012Date of Patent: August 14, 2018Assignee: Kabushiki Kaisha KinkiInventors: Naoya Wada, Naoki Ueno, Yasuhiko Honda, Isao Nagai
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Patent number: 9855627Abstract: A regenerating method of a cutting blade to be repaired includes a chamfering step of chamfering a leading edge part and side edge parts of a cutting blade, a build-up welding step of welding a build-up on the chamfered leading edge part and the chamfered side edge parts, and a processing step of regenerating and processing build-up welding portions of the cutting blade into a specified shape of the leading edge part and the side edge parts, and of the build-up welding portions formed on the side edge parts, such that a dimension L1 of a lateral build-up weld zone is 1 to 3 times a dimension L2 of an outer build-up weld zone.Type: GrantFiled: February 7, 2013Date of Patent: January 2, 2018Assignee: KABUSHIKI KAISHA KINKIInventors: Naoya Wada, Yasuhiko Honda, Yoshinobu Azui, Isao Nagai, Tetsuo Yasukawa, Katsu Matsumoto, Keita Takami, Natsuki Takemoto
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Publication number: 20150251188Abstract: To present a regenerated cutting blade, capable of regenerating efficiently by saving the cost and labor for regenerating a cutting blade, and improved in the grinding efficiency of a shearing type grinder to be close to that of a new cutting blade, when mounted and used in a shearing type grinder, including a fixed part 125, and a blade tip 127 projecting outward from this fixed part 125, in which the blade tip 127 has a leading end edge 109 pointed toward the rotating direction, and side edges 110 on the lateral side outer periphery including the blade tip 127, the leading end edge 109 and the side edges 110 are regenerated and formed by build-up welding, and the lateral sides are provided with slip preventive build-up welding parts 111, 112, 113 of the workpiece extending from the side edges 110 toward the central side of its rotation or the central direction, being formed by three regenerating processes.Type: ApplicationFiled: August 28, 2012Publication date: September 10, 2015Inventors: Naoya Wada, Naoki Ueno, Yasuhiko Honda, Isao Nagai
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Publication number: 20140215787Abstract: A regenerating method of a cutting blade to be repaired includes a chamfering step of chamfering the leading edge part and the side edge parts of a cutting blade, a build-up welding step of welding a build-up on the chamfered leading edge part and side edge parts, and a processing step of regenerating and processing build-up welding portions of the cutting blade into a specified shape of leading edge part and side edge parts, and of the side build-up welding portions formed on the side edge part, dimension L1 of a lateral build-up weld zone is 1 to 3 times of dimension L2 of an outer build-up weld zone.Type: ApplicationFiled: February 7, 2013Publication date: August 7, 2014Applicant: Kabushiki Kaisha KinkiInventors: Naoya WADA, Yasuhiko HONDA, Yoshinobu AZUI, Isao NAGAI, Tetsuo YASUKAWA, Katsu MATSUMOTO, Keita TAKAMI, Natsuki TAKEMOTO
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Patent number: 5136104Abstract: From a methoxy-, tertiary butyl-, or phenoxy-substituted toluene, a corresponding substituted benzaldehyde is obtained by the catalytic gas-phase oxidation of the substituted toluene with a molecular oxygen-containing gas in the presence of a catalyst composition represented by the formula, V.sub.a X.sub.b Y.sub.c O.sub.d, wherein X stands for at least one element from among Na, K, Rb, Cs, and Tl (with the exception of a case wherein K is used alone), Y for at least one element from among Mg, Ca, Sr, Ba, Nb, Ta, P, Sb, Bi, Cu, Ag, Ti, Fe, Co, Ni, Sn, Ce, and Zn, and a, b, c, and d jointly represent an atomic ratio of the relevant elements.Type: GrantFiled: January 12, 1987Date of Patent: August 4, 1992Assignee: Nippon Shokubai Kagaku Kogyo Co. Ltd.Inventors: Noboru Saito, Isao Nakamura, Michio Ueshima, Kazuhiro Takatsu, Isao Nagai
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Patent number: 4805618Abstract: An oviduct-closing apparatus includes a body having a clamping portion. The clamping portion is prepared from a shape memory alloy. The clamping portion deforms into an open state engageable with an oviduct or a closed state capable of clamping the oviduct, in accordance with temperature change.Type: GrantFiled: April 11, 1988Date of Patent: February 21, 1989Assignee: Olympus Optical Co., Ltd.Inventors: Yasuhiro Ueda, Isao Nagai, Naruto Shinkai, Masaaki Nakazawa, Toshiki Terayama
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Patent number: 4621155Abstract: A catalyst for the vapor-phase oxidation of an unsaturated hydrocarbon, alcohol, saturated aliphatic aldehyde or unsaturated aliphatic aldehyde having 4 carbon atoms, said catalyst comprising a molybdovanadophosphoric acid having X-ray diffraction lines (Cu-K.sub..alpha. radiation) at 2.theta.=about 26.2.degree., about 10.5.degree., about 21.3.degree. and about 30.3.degree. and a crystal structure approximating that of its salt, and said catalyst having the composition represented by the general formulaP.sub.a Mo.sub.b V.sub.c X.sub.d Y.sub.e O.sub.Type: GrantFiled: December 14, 1984Date of Patent: November 4, 1986Assignee: Nippon Shokubai Kagaku Kogyo Co. Ltd.Inventors: Michio Ueshima, Yoshiyuki Takahashi, Ritsuo Kitada, Isao Nagai
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Patent number: 4558028Abstract: A catalyst for production of methacrylic acid, said catalyst being molded in a ring-like shape having an outside diameter of 3.0 to 10.0 mm, an inside diameter 0.1 to 0.7 times the outside diameter and a length 0.5 to 2.0 times the outside diameter, said catalyst comprising a catalytically active material having the composition represented by the following general formulaMo.sub.a P.sub.b A.sub.c B.sub.d C.sub.e D.sub.f O.sub.Type: GrantFiled: December 16, 1983Date of Patent: December 10, 1985Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Hideaki Tsuneki, Michio Ueshima, Ryuji Aoki, Isao Nagai
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Patent number: 4537874Abstract: A catalyst for the production of unsaturated aldehydes is provided which is represented by the general formulaBi.sub.a W.sub.b Fe.sub.c Mo.sub.d A.sub.e B.sub.f C.sub.g D.sub.h O.sub.xwherein Bi represents bismuth, W represents tungsten, Fe represents iron, Mo represents molybdenum, O represents oxygen, A represents nickel and/or cobalt, B represents at least one element selected from the group consisting of alkali metals, alkaline earth metals and thallium, C represents at least one element selected from the group consisting of phosphorus, arsenic, boron, antimony, tin, cerium, lead and niobium, D presents at least one element selected from the group consisting of silicon, aluminum, zirconium and titanium, a, b, c, d, e, f, g, h and x represent the atomic ratios of the individual elements, and when d is taken as 12, a=0.1-10.0, b=0.5-10.0 (provided that a/b=0.01-6.0), c=0.1-10.0, e=2.0-20.0, f=0.001-10.0, g=0-10.0, and h=0-30, and x takes a number determined by the atomic valences of the individual elements.Type: GrantFiled: October 18, 1983Date of Patent: August 27, 1985Assignee: Nippon Shokubai Kagaku Kogyo Co LtdInventors: Takahisa Sato, Masahiro Takata, Michio Ueshima, Isao Nagai
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Patent number: 4511671Abstract: A catalyst for manufacturing methacrolein by the vapor phase oxidation of isobutylene or tertiary butanol, said catalyst having the composition represented by the following formulaMo.sub.a W.sub.b Bi.sub.c Fe.sub.d A.sub.e B.sub.f C.sub.g D.sub.h O.sub.xwhereinA represents at least one element selected from the group consisting of nickel and cobalt,B represents at least one element selected from the group consisting of alkali metals, alkaline earth metals and thallium,C represents at least one element selected from the group consisting of tellurium, antimony, tin, cerium, lead, manganese and zinc,D represents at least one element selected from the group consisting of silicon, aluminum, zirconium and titanium,a, b, c, d, e, f, g, h, and x respectively represent the atomic ratios of Mo, W, Bi, Fe, A, B, C, D, and O, and whena is fixed at 12,b is from 0 to 10,c is from 0.1 to 10,d is from 0.Type: GrantFiled: September 1, 1983Date of Patent: April 16, 1985Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Noboru Saito, Takeshi Satake, Ryuji Aoki, Isao Nagai
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Patent number: 4425798Abstract: A portalbe apparatus is disclosed for the diagnosis of a rotating machinery utilizing a fast Fourier transform frequency spectrum analysis system. The presence or absence of an abnormality or trouble in the rotating machinery is determined by selecting high amplitudes out from the frequency spectrum computed by the FFT frequency spectrum analysis system, arithmetically processing distribution data of spectrum amplitudes adjacent each frequency giving the corresponding high amplitude, and detecting the amplitude, at which the frequency of vibrations of the rotating machinery has attained a maximum value, together with such frequency. The diagnosis of the rotating machinery with this apparatus can be performed in situ, i.e., at the site of installation of such machinery.Type: GrantFiled: November 12, 1981Date of Patent: January 17, 1984Assignee: Kawasaki Steel CorporationInventors: Isao Nagai, Kenzo Wada
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Patent number: 4419270Abstract: A catalyst for the vapor-phase oxidation of an unsaturated hydrocarbon, alcohol, saturated aliphatic aldehyde or unsaturated aliphatic aldehyde having 4 carbon atoms, said catalyst comprising a molybdovanadophosphoric acid having X-ray diffraction lines (Cu-K.sub..alpha. radiation) at 2.theta.=about 26.2.degree., about 10.5.degree., about 21.3.degree. and about 30.3.degree. and a crystal structure approximating that of its salt, and said catalyst having the composition represented by the general formulaP.sub.a Mo.sub.b V.sub.c X.sub.d Y.sub.e O.sub.Type: GrantFiled: June 19, 1981Date of Patent: December 6, 1983Assignee: Nippon Shokubai Kagaku Kogyo Co. Ltd.Inventors: Michio Ueshima, Yoshiyuki Takahashi, Ritsuo Kitada, Isao Nagai