Patents by Inventor Yasumitsu Kondo
Yasumitsu Kondo 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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Publication number: 20230400298Abstract: This internal oxide layer thickness estimation device estimates a thickness of an internal oxide layer formed in a hot-rolled steel sheet.Type: ApplicationFiled: November 2, 2021Publication date: December 14, 2023Applicant: NIPPON STEEL CORPORATIONInventors: Tooru AKASHI, Keita IKEDA, Yasumitsu KONDO, Naoki INOUE, Akinobu MINAMI
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Publication number: 20230296579Abstract: An internal oxidation starting temperature, estimation device estimates an internal oxidation starting temperature which is a minimum temperature required for an internal oxide layer to grow on a surface of an easily oxidizable element-containing hot-rolled steel sheet including Si, Mn, or Al or any combination thereof. The internal oxidation starting temperature estimation device includes an internal, oxidation starting temperature estimation unit that estimates the internal oxidation starting temperature on the basis of concentrations of the Si, the Mn, and the Al included in the easily oxidizable element-containing hot-rolled steel sheet.Type: ApplicationFiled: November 2, 2021Publication date: September 21, 2023Applicant: NIPPON STEEL CORPORATIONInventors: Keita IKEDA, Tooru AKASHI, Yasumitsu KONDO
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Patent number: 11474032Abstract: A scale composition determination device (10) determines that Fe2O3 has been generated in the outermost layer of a scale (SC) in the case where at least one of spectral emissivities at one wavelength and the other wavelength that are measured by radiometers for spectral emissivity measurement (21a, 21b) is not within a predetermined range including spectral emissivities of FeO at one wavelength and the other wavelength, and determines that Fe2O3 has not been generated in the outermost layer of the scale (SC) in the case where all of the spectral emissivities at one wavelength and the other wavelength that are measured by the radiometers for spectral emissivity measurement (21a, 21b) is within the predetermined range including the spectral emissivities of FeO at one wavelength and the other wavelength.Type: GrantFiled: April 25, 2018Date of Patent: October 18, 2022Assignee: NIPPON STEEL CORPORATIONInventors: Masato Sugiura, Hiroshi Tanei, Shuichi Yamazaki, Yasumitsu Kondo
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Patent number: 11454542Abstract: A scale composition determination device (10) determines that Fe2O3 has been generated in the outermost layer of a scale (SC) in the case where the absolute value of a difference between temperatures of a steel material SM measured by radiation thermometers (20a, 20b) is equal to or more than a predetermined temperature, and determines that Fe2O3 has not been generated in the outermost layer of the scale (SC) in the case where the absolute value of the difference between the temperatures of the steel material SM measured by the radiation thermometers (20a, 20b) is not equal to or more than the predetermined temperature.Type: GrantFiled: April 29, 2021Date of Patent: September 27, 2022Assignee: NIPPON STEEL CORPORATIONInventors: Hiroshi Tanei, Masato Sugiura, Shuichi Yamazaki, Yasumitsu Kondo
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Publication number: 20210247235Abstract: A scale composition determination device (10) determines that Fe2O3 has been generated in the outermost layer of a scale (SC) in the case where the absolute value of a difference between temperatures of a steel material SM measured by radiation thermometers (20a, 20b) is equal to or more than a predetermined temperature, and determines that Fe2O3 has not been generated in the outermost layer of the scale (SC) in the case where the absolute value of the difference between the temperatures of the steel material SM measured by the radiation thermometers (20a, 20b) is not equal to or more than the predetermined temperature.Type: ApplicationFiled: April 29, 2021Publication date: August 12, 2021Applicant: NIPPON STEEL CORPORATIONInventors: Hiroshi TANEI, Masato SUGIURA, Shuichi YAMAZAKI, Yasumitsu KONDO
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Patent number: 11029212Abstract: A scale composition determination device (10) determines that Fe2O3 has been generated in the outermost layer of a scale (SC) in the case where the absolute value of a difference between temperatures of a steel material SM measured by radiation thermometers (20a, 20b) is equal to or more than a predetermined temperature, and determines that Fe2O3 has not been generated in the outermost layer of the scale (SC) in the case where the absolute value of the difference between the temperatures of the steel material SM measured by the radiation thermometers (20a, 20b) is not equal to or more than the predetermined temperature.Type: GrantFiled: April 25, 2018Date of Patent: June 8, 2021Assignee: NIPPON STEEL CORPORATIONInventors: Hiroshi Tanei, Masato Sugiura, Shuichi Yamazaki, Yasumitsu Kondo
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Publication number: 20200103285Abstract: A scale composition determination device (10) determines that Fe2O3 has been generated in the outermost layer of a scale (SC) in the case where the absolute value of a difference between temperatures of a steel material SM measured by radiation thermometers (20a, 20b) is equal to or more than a predetermined temperature, and determines that Fe2O3 has not been generated in the outermost layer of the scale (SC) in the case where the absolute value of the difference between the temperatures of the steel material SM measured by the radiation thermometers (20a, 20b) is not equal to or more than the predetermined temperature.Type: ApplicationFiled: April 25, 2018Publication date: April 2, 2020Applicant: NIPPON STEEL CORPORATIONInventors: Hiroshi TANEI, Masato SUGIURA, Shuichi YAMAZAKI, Yasumitsu KONDO
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Publication number: 20200033268Abstract: A scale composition determination device (10) determines that Fe2O3 has been generated in the outermost layer of a scale (SC) in the case where at least one of spectral emissivities at one wavelength and the other wavelength that are measured by radiometers for spectral emissivity measurement (21a, 21b) is not within a predetermined range including spectral emissivities of FeO at one wavelength and the other wavelength, and determines that Fe2O3 has not been generated in the outermost layer of the scale (SC) in the case where all of the spectral emissivities at one wavelength and the other wavelength that are measured by the radiometers for spectral emissivity measurement (21a, 21b) is within the predetermined range including the spectral emissivities of FeO at one wavelength and the other wavelength.Type: ApplicationFiled: April 25, 2018Publication date: January 30, 2020Applicant: NIPPON STEEL CORPORATIONInventors: Masato SUGIURA, Hiroshi TANEI, Shuichi YAMAZAKI, Yasumitsu KONDO
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Publication number: 20180100213Abstract: A hot-rolled steel sheet according to the present embodiment has a chemical composition containing, in mass %: C: 0.07 to 0.30%, Si: more than 1.0 to 2.8%, Mn: 2.0 to 3.5%, P: 0.030% or less, S: 0.010% or less, Al: 0.01 to less than 1.0%, N: 0.01% or less, O: 0.01% or less, and one or more types selected from the group consisting of Sb, Sn and Te in a total amount of 0.03 to 0.30%, with a balance being Fe and impurities, and satisfying Formula (1). The micro-structure of the hot-rolled steel sheet includes ferrite and pearlite in a total amount of 50 area % or more. The tensile strength of the hot-rolled steel sheet is 900 MPa or less. Si+Mn?3.20??(1) Where, a content (mass %) of a corresponding element is substituted for each symbol of an element in Formula (1).Type: ApplicationFiled: April 14, 2016Publication date: April 12, 2018Inventors: Yasuaki TANAKA, Mutsumi SAKAKIBARA, Takafumi YOKOYAMA, Hiroyuki KAWATA, Natsuko SUGIURA, Yasumitsu KONDO
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Publication number: 20110061677Abstract: The present invention is a method of descaling a steel material which removes scale formed at the time of hot rolling a steel material by spraying jets of high pressure water from a plurality of nozzles on to the surface of the steel material, the method of descaling a steel material comprising giving pulsation of a frequency of 3.0 kHz to 200 kHz by direct vibration by a vibrator or vibration due to resonance to the high pressure water and setting a distance from each nozzle to the steel slab at 50 to 700 mm in range. Due to this, there is provided a method of producing a hot rolled steel material of a sufficiently good quality removing scale from a difficult-to-descale steel slab such as high Si steel without requiring high pressure water of an extremely high discharge pressure and while easing temperature restrictions on the heating furnace.Type: ApplicationFiled: May 13, 2009Publication date: March 17, 2011Inventors: Katsuyuki Yanagihara, Yasumitsu Kondo
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Patent number: 7291230Abstract: The present invention: relates to a grain-oriented electrical steel sheet and a double-oriented electrical steel sheet which are used as soft magnetic materials for electrical machinery and apparatus; and is a grain-oriented electrical steel sheet extremely excellent in film adhesiveness, characterized by: containing, in mass, 2.5 to 4.5% Si, 0.01 to 0.4% Ti, and not more than 0.005% as to each of C, N, S and O, with the balance substantially consisting of Fe and unavoidable impurities; and having films comprising compounds of C with Ti or Ti and one or more of Nb, Ta, V, Hf, Zr, Mo, Cr and W on the surfaces of said steel sheet, and a method for producing the steel sheet.Type: GrantFiled: March 28, 2003Date of Patent: November 6, 2007Assignee: Nippon Steel CorporationInventors: Hotaka Homma, Yoshiaki Hirota, Yasumitsu Kondo, Yuji Kubo, Takehide Senuma, Shuichi Nakamura
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Publication number: 20050126659Abstract: The present invention: relates to a grain-oriented electrical steel sheet and a double-oriented electrical steel sheet which are used as soft magnetic materials for electrical machinery and apparatus; and is a grain-oriented electrical steel sheet extremely excellent in film adhesiveness, characterized by: containing, in mass, 2.5 to 4.5% Si, 0.01 to 0.4% Ti, and not more than 0.005% as to each of C, N, S and O, with the balance substantially consisting of Fe and unavoidable impurities; and having films comprising compounds of C with Ti or Ti and one or more of Nb, Ta, V, Hf, Zr, Mo, Cr and W on the surfaces of said steel sheet, and a method for producing the steel sheet.Type: ApplicationFiled: March 28, 2003Publication date: June 16, 2005Inventors: Hotaka Homma, Yoshiaki Hirota, Yasumitsu Kondo, Yuji Kubo, Takehide Senuma, Shuichi Nakamura
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Patent number: 5480791Abstract: An easy operable method of detecting phosphatase which comprises a step for the production of a dye to obtain an azo dye by the reaction of phosphatase in a tissue or cell or on chromosome with a 2'-naphthol AS phosphate, specifically, 3-hydroxy- N-2'-biphenyl-2-naphthalenecarboxamide phosphate ester, followed by the reaction between the dephosphorylated 2'-naphthol AS compound with a diazonium salt; an excitation step for the irradiation of excited light to the azo dye; and a detection step for the detection of fluorescence which is emitted upon irradiation of the excited light. The fluorescence is intense and lasts for a long time.Type: GrantFiled: November 23, 1993Date of Patent: January 2, 1996Assignee: Aisin Seiki Kabushiki KaishaInventors: Satoshi Fujita, Naoto Kagiyama, Masayoshi Momiyama, Yasumitsu Kondo
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Patent number: 5385823Abstract: Method for assaying nucleic acids and proteins employing no radiosotope labeling, which is suitable for data storage and allows to carry out the detection efficiently and high sensitivity. The sample selectable from the group of nucleic acids, proteins, and other chemical compounds is adhered on a nylon membrane filter to be bound to a phosphatase. Then the phosphatase is reacted with an anthracene derivative phosphate followed by irradiating the reaction product with ultraviolet light to detect a fluorescence emitted therefrom.Type: GrantFiled: December 22, 1992Date of Patent: January 31, 1995Assignee: Aisin Seiki Kabushiki KaishaInventors: Satoshi Fujita, Masayoshi Momiyama, Naoto Kagiyama, Yasumitsu Kondo, Hiroshi Hori
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Patent number: 5266129Abstract: A slab for an electrical steel sheet is heated at a temperature of 1280.degree. C. or below and then hot-rolled. The hot-rolled steel sheet or hot rolled and annealed steel sheet is then cold-rolled once or at least twice with intermediate annealing being performed between rollings. The cold-rolled sheet is decarburized and nitrided to form an inhibitor. The amount of nitrogen of in the steel sheet during the nitriding treatment subsequent to the decarburization annealing and the iron loss value after the withdrawal of the steel sheet from the furnace are measured to estimate the average diameter of a primary recrystallized grain, and next decarburization annealing is performed under conditions regulated in such a manner that the average diameter of the primary recrystallized grain of a product sheet falls within a proper range. The steel sheet subjected to the decarburization annealing is coated with an annealing separator composed mainly of MgO and then subjected to finish annealing.Type: GrantFiled: September 21, 1992Date of Patent: November 30, 1993Assignee: Nippon Steel CorporationInventors: Masayoshi Minakuchi, Yasumitsu Kondo, Maremizu Ishibashi
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Patent number: 4548816Abstract: Novel antibiotic SF-2288 is produced by fermentation of an actinomycete belonging to the genus Actinomadura in nutrient medium. Based on its physico-chemical and biological properties, antibiotic SF-2288 possesses an excellent antimicrobial activity against Gram-positive and Gram-negative microorganisms and antiviral activity.Type: GrantFiled: June 21, 1984Date of Patent: October 22, 1985Assignee: Meiji Seika Kaisha, Ltd.Inventors: Yasumitsu Kondo, Takashi Shomura, Junko Yoshida, Kazuo Okano, Masaji Sezaki, Tatsuo Itoh
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Patent number: 4181715Abstract: A novel antibiotic substance SF-1540 and a process for preparing the same which comprises culturing a substance SF-1540-producing microorganism belonging to the genus Streptomyces in a medium and isolating and recovering the substance SF-1540 from a cultured broth; a novel derivative of the substance SF-1540 and a process for preparing the same which comprises treating said antibiotic substance SF-1540 with methanol to form the corresponding antibiotic substance SF-1540 derivative.Type: GrantFiled: May 24, 1978Date of Patent: January 1, 1980Assignee: Meiji Seika Kaisha Ltd.Inventors: Yasumitsu Kondo, Takashi Shomura, Hiroshi Watanabe, Tetsuro Watanabe, Shigeharu Inouye, Taro Niida
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Patent number: 4103083Abstract: Novel antibiotics derivatives 7-(5-acylamido-5-carboxyvaleramido)-3-(.alpha.-methoxy-p-acyloxycinnamoylo xymethyl)-7-methoxy-3-cephem-4-carboxylic acids and the salts thereof which are useful as antibiotics and intermediates for the preparation of cephamycin derivatives, a process for preparing the same, and a process for recovering the cephamycin derivatives effectively and stably from the fermentation broth in the form of an N-acyl derivative.Type: GrantFiled: December 17, 1976Date of Patent: July 25, 1978Assignee: Meiji Seika Kaisha, Ltd.Inventors: Yasuaki Ogawa, Yasumitsu Kondo, Takashi Shomura, Takashi Tsuruoka, Shigeharu Inouye, Taro Niida
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Patent number: 4076588Abstract: A new antibiotic designated as SF-1623 substance exhibiting a useful antibacterial activity against gram-negative bacteria is now produced by cultivating a new strain ATCC 21999 of the known species Streptomyces chartreusis. The SF-1623 substance in the form of its an alkali metal salt may be recovered from the culture when the cultivation is effected under aerobic conditions in the presence of an alkali metal thiosulfate.Type: GrantFiled: July 8, 1976Date of Patent: February 28, 1978Assignee: Meiji Seika Kaisha, Ltd.Inventors: Shigeharu Inouye, Takashi Shomura, Michio Kojima, Yasuaki Ogawa, Hiroshi Watanabe, Yasumitsu Kondo, Kazuo Saito, deceased, Yujiro Yamada, Taro Niida
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Patent number: 4010155Abstract: A new antibiotic designated as SF-1623 substance exhibiting a useful antibacterial activity against gram-negative bacteria is now produced by cultivating a new strain ATCC 21999 of the known species Streptomyces chartreusis. The SF-1623 substance in the form of its an alkali metal salt may be recovered from the culture when the cultivation is effected under aerobic conditions in the presence of an alkali metal thiosulfate.Type: GrantFiled: November 25, 1974Date of Patent: March 1, 1977Assignee: Meiji Seika Kaisha, Ltd.Inventors: Shigeharu Inouye, Takashi Shomura, Michio Kojima, Yasuaki Ogawa, Hiroshi Watanabe, Yasumitsu Kondo, Kazuo Saito, deceased, Yujiro Yamada, Taro Niida