Patents by Inventor Kiyoshi Kuroda
Kiyoshi Kuroda 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: 20230155534Abstract: An inverter control device 200 includes a PWM control unit 220 that generates a PWM pulse for controlling an inverter 100, and a pulse edge control unit 250 that performs pulse edge control for correcting (shifting) a phase of a pulse edge of the PWM pulse generated by the PWM control unit 220. The PWM control unit 220 generates a PWM pulse by using a modulation rate based on a voltage command (Vd*, Vq*). The pulse edge control unit 250 corrects the PWM pulse so that a phase difference between a zero cross point where the modulation wave changes across 0 and a pulse edge of the PWM pulse falls within a predetermined range.Type: ApplicationFiled: January 22, 2021Publication date: May 18, 2023Applicant: Hitachi Astemo, Ltd.Inventors: Toshiyuki AJIMA, Takafumi HARA, Akihiro ASHIDA, Hirokazu MATSUI, Kiyoshi KURODA
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Publication number: 20230035063Abstract: A deviation between a detection result of an output current of an inverter and an actual current is suppressed. A current detection unit 7 detects a three-phase AC current output from an inverter 3 or input to the inverter 3. An inverter control device 1 controls the inverter 3 based on a current detection value based on a detection result of the three-phase AC current by the current detection unit 7 and a predetermined current command value. The inverter control device 1 corrects the current detection value so as to correct a detection error of the three-phase AC current generated due to a delay time of a filter 72 which is a filter element provided in the current detection unit 7.Type: ApplicationFiled: December 8, 2020Publication date: February 2, 2023Applicant: HITACHI ASTEMO, LTD.Inventors: Takafumi HARA, Toshiyuki AJIMA, Akihiro ASHIDA, Kiyoshi KURODA, Yoshinoi AOSHIMA
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Patent number: 10759910Abstract: A method for manufacturing an organism adhesion reduction paint includes a first process of gelling a raw material composition that includes polyvinyl alcohol and at least one of a hydroxyl group-containing inorganic compound or an inorganic oxide; a second process of drying and subsequently pulverizing a resulting product in the first process to thereby obtain a composite gel fine powder; and a third process of adding the composite gel fine powder to a main component of a two-component urethane paint and stirring, to thereby prepare a main component of the organism adhesion reduction paint, and also adding a curing agent immediately before use.Type: GrantFiled: July 11, 2016Date of Patent: September 1, 2020Assignees: FUJI SILYSIA CHEMICAL LTD., DAISYO GREEN INDUSTRY CO., LTD., KURARAY CO., LTD.Inventors: Mitsuteru Ogawa, Shinji Yamamoto, Kiyoshi Kuroda, Mutsuhiro Ito, Yoshio Nakano, Akio Kameyama, Tadahito Fukuhara, Keisuke Morikawa
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Publication number: 20180223051Abstract: A composite gel in one aspect of the present disclosure comprises a substance prepared by gelling a raw material composition that comprises, as main components, a hydroxyl group-containing organic polymer compound and one of a hydroxyl group-containing inorganic compound and an inorganic oxide. A method for manufacturing the composite gel in one aspect of the present disclosure comprises a first process of gelling a raw material composition that comprises, as main components, a hydroxyl group-containing organic polymer compound and at least one of a hydroxyl group-containing inorganic compound or an inorganic oxide; and a second process of drying and subsequently pulverizing a resulting product in the first process to thereby obtain a composite gel fine powder.Type: ApplicationFiled: July 11, 2016Publication date: August 9, 2018Inventors: Mitsuteru Ogawa, Shinji Yamamoto, Kiyoshi Kuroda, Mutsuhiro Ito, Yoshio Nakano, Akio Kameyama, Tadahito Fukuhara, Keisuke Morikawa
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Patent number: 6872331Abstract: An oxide ion conductor is manufactured having a relatively high mechanical strength while the ionic conduction thereof is maintained at a satisfactory level. The oxide ion conductor is represented by the formula Ln11-xAxGa1-y-z-wB1yB2zB3wO3-d. In the oxide ion conductor, Ln1 is at least one element selected from the group consisting of La, Ce, Pr, Nd, and Sm, A is at least one element selected from the group consisting of Sr, Ca, and Ba, B1 is at least one element selected from the group consisting of Mg, Al, and In, B2 is at least one element selected from the group consisting of Co, Fe, Ni, and Cu, and B3 is at least one element selected from the group consisting of Al, Mg, Co, Ni, Fe, Cu, Zn, Mn, and Zr, wherein x is 0.05 to 0.3, y is 0.025 to 0.29, z is 0.01 to 0.15, w is 0.01 to 0.15, y+z+w is 0.035 to 0.3, and d is 0.04 to 0.3.Type: GrantFiled: August 4, 2003Date of Patent: March 29, 2005Assignee: Mitsubishi Materials CorporationInventors: Kiyoshi Kuroda, Takashi Yamada, Yoshitaka Tamo, Kazunori Adachi
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Publication number: 20040026668Abstract: An oxide ion conductor is manufactured having a relatively high mechanical strength while the ionic conduction thereof is maintained at a satisfactory level. The oxide ion conductor is represented by the formula Ln11-xAxGa1-y-z-wB1yB2zB3wO3-d. In the oxide ion conductor, Ln1 is at least one element selected from the group consisting of La, Ce, Pr, Nd, and Sm, A is at least one element selected from the group consisting of Sr, Ca, and Ba, B1 is at least one element selected from the group consisting of Mg, Al, and In, B2 is at least one element selected from the group consisting of Co, Fe, Ni, and Cu, and B3 is at least one element selected from the group consisting of Al, Mg, Co, Ni, Fe, Cu, Zn, Mn, and Zr, wherein x is 0.05 to 0.3, y is 0.025 to 0.29, z is 0.01 to 0.15, w is 0.01 to 0.15, y+z+w is 0.035 to 0.3, and d is 0.04 to 0.3.Type: ApplicationFiled: August 4, 2003Publication date: February 12, 2004Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Kiyoshi Kuroda, Takashi Yamada, Yoshitaka Tamo, Kazunori Adachi
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Patent number: 6521649Abstract: A method for using a compound represented by the general formula: (wherein R1 and R2 are the substituents, respectively, defined in the specification) for agricultural and horticultural disease control, and a composition used in said method.Type: GrantFiled: September 20, 2000Date of Patent: February 18, 2003Assignee: Nihon Nohayku Co., Ltd.Inventors: Kiyoshi Kuroda, Toru Uchikurohane, Sokichi Tajima, Kenji Tsubata
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Publication number: 20020013214Abstract: An oxide ion conductor is manufactured having a relatively high mechanical strength while the ionic conduction thereof is maintained at a satisfactory level. The oxide ion conductor is represented by the formula Ln11-xAxGa1-y-z-wB1yB2zB3wO3-d. In the oxide ion conductor, Ln1 is at least one element selected from the group consisting of La, Ce, Pr, Nd, and Sm, A is at least one element selected from the group consisting of Sr, Ca, and Ba, B1 is at least one element selected from the group consisting of Mg, Al, and In, B2 is at least one element selected from the group consisting of Co, Fe, Ni, and Cu, and B3 is at least one element selected from the group consisting of Al, Mg, Co, Ni, Fe, Cu, Zn, Mn, and Zr, wherein x is 0.05 to 0.3, y is 0.025 to 0.29, z is 0.01 to 0.15, w is 0.01 to 0.15, y+z+w is 0.035 to 0.3, and d is 0.04 to 0.3.Type: ApplicationFiled: March 5, 2001Publication date: January 31, 2002Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Kiyoshi Kuroda, Takashi Yamada, Yoshitaka Tamo, Kazunori Adachi
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Patent number: 6166054Abstract: A method for using a compound represented by the general formula: ##STR1## (wherein R.sup.1 and R.sup.2 are the substituents, respectively, defined in the specification) for agricultural and horticultural disease control, and a composition used in said method.Type: GrantFiled: September 30, 1997Date of Patent: December 26, 2000Assignee: Nihon Nohyaku Co., Ltd.Inventors: Kiyoshi Kuroda, Toru Uchikurohane, Sokichi Tajima, Kenji Tsubata
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Patent number: 5136575Abstract: The present invention is a transmission system in which there are provided a bridge circuit in which a balanced condition is provided in an entire frequency band usable for a wire transmission line or a portion thereof, and a cancelling circuit in which a simultaneous two-directional communication is enabled by using the same frequency or the frequency adjacent thereto, and there are provided said cancelling circuits at both terminal devices opposite to each other through a transmission line, thereby enabling said simultaneous two-directional communication.Type: GrantFiled: January 9, 1991Date of Patent: August 4, 1992Assignee: Kabushiki Kaisha MyukomuInventor: Kiyoshi Kuroda
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Patent number: 4848606Abstract: A piston driving device for dispensing a predetermined small amount of paste-like material from a nozzle in response to an electrical signal without any time-delay is enabled by the slow rotation of a ball-screw shaft, the rotation being reduced by a differential gear system. A female ball-nut fitted onto the ball-screw shaft causes a piston plunger to advance at very low speed such that dispensing of the predetermined volume of paste-like fluid is possible. Vertical motion of a nozzle is compensated by vertical motion of a piston driving device such that the relative position of a piston against a nozzle is unchanged.Type: GrantFiled: July 23, 1987Date of Patent: July 18, 1989Assignee: Tokyo Juki Industrial Co., Ltd.Inventors: Katsuhiko Taguchi, Yoshimi Imamiya, Yuji Takegawa, Kiyoshi Kuroda, Sotonari Arashi
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Patent number: 3988364Abstract: The invention relates to a group of novel N,N'-di-substituted amines, especially adapted for use as antitussive agent.These compounds can be expressed by the following general formula: ##SPC1##WhereinR.sub.1 stands for a member selected from the group consisting of hydrogen, methyl and methoxy;R.sub.2 stands for a member selected from the group consisting of phenyl, tolyl, xylyl, ethylphenyl, o- and m-methoxyphenyl, trimethylphenyl and .alpha. -naphthyl.Type: GrantFiled: June 19, 1975Date of Patent: October 26, 1976Assignee: Toyo Jozo Kabushiki KaishaInventors: Kiyoshi Kuroda, Masyuki Hori, Sadami Kobari, Takeshi Shimizu