Patents by Inventor Masahiro Honma

Masahiro Honma 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).

  • Publication number: 20200109712
    Abstract: An information processing apparatus detecting presence or absence of abnormality of a vacuum pump derived from a product produced within a target vacuum pump, including: a determination unit configured to determine a normal variation range or a normal time variation behavior of a target state quantity which is a state quantity varying depending on a load of gas flowing into the vacuum pump, based on at least one of past target state quantities of the target vacuum pump or another vacuum pump; and a comparison unit configured to compare a current target state quantity of the target vacuum pump with the normal variation range or the normal time variation behavior and output the comparison result.
    Type: Application
    Filed: March 13, 2018
    Publication date: April 9, 2020
    Inventors: Keiji Maishigi, Tetsuro Sugiura, Katsuaki Usui, Masahiro Hatakeyama, Chikako Honma, Toru Osuga, Koichi Iwasaki, Jie Yuan Lin
  • Publication number: 20200024388
    Abstract: A polyester resin composition includes a copolymer of a polycarboxylic acid component and a polyol component. The polycarboxylic acid component includes terephthalic acid and/or a derivative thereof The polyol component includes ethylene glycol and/or a derivative thereof and 2,2-dimethyl-1,3-propanediol and/or a derivative thereof. A content by percentage of 2,2-dimethyl-1,3-propanediol and/or the derivative thereof is 27 mol % to 55 mol % based on the total amount of the polyol component. The composition has an intrinsic viscosity of 0.5 dl/g to 0.6 dl/g.
    Type: Application
    Filed: August 22, 2017
    Publication date: January 23, 2020
    Inventors: Yusuke ITO, Tomomitsu UENO, Hideaki TOMURA, Masahiro YAMA, Tetsuo NISHIKAWA, Toshio HONMA
  • Patent number: 10414986
    Abstract: A method for manufacturing coke having a high strength and excellent extrusion capability. The method includes a preparing step of blending two or more coal brands to prepare a coal blend, a stirring and mixing step of stirring and mixing the coal blend to disintegrate at least a part of pseudo-particles that have been formed by agglomeration of coal particles in the coal blend, and a carbonizing step of charging the stirred and mixed coal blend into a coke oven to carbonize the stirred and mixed coal blend. Additionally, a mixing apparatus is used in the stirring and mixing step that has a capability of controlling a degree of mixing of the coal blend to be 0.85 or more at 60 seconds after start of a mixing operation. The degree of mixing is calculated by the following equation (1): degree of mixing=(?C0??C)/(?C0??Cf)??(1).
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: September 17, 2019
    Assignee: JFE STEEL CORPORATION
    Inventors: Yusuke Dohi, Yoshiko Maeta, Kazutoshi Hanada, Kiyoshi Fukada, Takashi Matsui, Michio Honma, Masahiro Shinohara
  • Publication number: 20160190594
    Abstract: In carbon black of the present invention, peak intensity IA of a main peak derived from Fe3C, peak intensity IB of a main peak derived from FeS, and peak intensity IC of a main peak derived from FeO(OH) in a radial distribution function, which is obtained by performing Fourier transform with respect to a broadband X-ray absorption fine structure spectrum of a K absorption edge, satisfy 0.7?IA(IB+IC)?6.0. A production method for a carbon black of the present invention includes subjecting raw material carbon black to a heat treatment at a temperature of 900° C. to 1500° C. for a time of 5 minutes to 180 minutes under an atmosphere of a halogen element-containing gas.
    Type: Application
    Filed: August 7, 2014
    Publication date: June 30, 2016
    Inventors: Masahiro HONMA, Yutaka ABE, Akira SHINOHARA, Youichirou KOHNO, Katsuyoshi OHARA, Hiromu SATO, Yasutaka HOSOKAWA, Yoko OSAKO
  • Patent number: 8816250
    Abstract: A pulsed arc welding method using carbon dioxide gas alone or a mixed gas made mainly of carbon dioxide gas as a shield gas, provides a pulse current of alternately repeating first and second pulses as a weld current. The first pulse and the second pulse have a pulse waveform of a different pulse peak current level and a different pulse width, respectively, and the following conditions are satisfied: peak current of the first pulse (Ip1)=300 to 700 A; peak period (Tp1)=0.3 to 5.0 ms; base current Ib1=30 to 200 A, base period (Tb1)=0.3 to 10 ms; peak current of the second pulse (Ip2)=200 to 600 A; peak period (Tp2)=1.0 to 15 ms; base current (Ib2)=30 to 200 A; and base period (Tb2)=3.0 to 20 ms.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: August 26, 2014
    Assignee: Kobe Steel, Ltd.
    Inventors: Fusaki Koshiishi, Keiichi Suzuki, Kei Yamazaki, Masahiro Honma
  • Patent number: 8274012
    Abstract: A welding control apparatus includes an integrator for starting calculation of a voltage error integral value Sv2 when a first pulse period ends and a second pulse period starts in a pulse cycle, based on various data. The apparatus also includes a comparator for comparatively determining whether a value of the voltage error integral value Sv2 provided as the calculation result has become 0, and a waveform generator for terminating the relevant pulse cycle and starting a next pulse cycle when the value of the voltage error integral value Sv2 is 0. Where Sv2=?{Ks(Io2?Is2)+Vs2?Vo2}dt??(1).
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: September 25, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Kei Yamazaki, Keiichi Suzuki, Masahiro Honma, Eiji Sato
  • Patent number: 8237088
    Abstract: A tandem pulse arc welding control apparatus includes a voltage detector; a voltage setting unit; a pulse-peak-current-reference-value setting circuit; a pulse-base-current-reference-value setting circuit; an error amplifier that calculates a pulse-peak-current variation value and a pulse-base-current variation value; an adder that calculates a pulse-peak-current value; an adder that calculates a pulse-base-current value; a pulse-waveform selection circuit that outputs the pulse-peak-current value in a pulse peak period, and that outputs the pulse-base-current value in a pulse base period; and an output control circuit that controls a current value for a second welding wire. Because an appropriate welding voltage can be obtained with this configuration, a high welding quality can be realized.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: August 7, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Masahiro Yokota, Eiji Sato, Masahiro Honma
  • Publication number: 20100230394
    Abstract: A tandem pulse arc welding control apparatus includes a voltage detector; a voltage setting unit; a pulse-peak-current-reference-value setting circuit; a pulse-base-current-reference-value setting circuit; an error amplifier that calculates a pulse-peak-current variation value and a pulse-base-current variation value; an adder that calculates a pulse-peak-current value; an adder that calculates a pulse-base-current value; a pulse-waveform selection circuit that outputs the pulse-peak-current value in a pulse peak period, and that outputs the pulse-base-current value in a pulse base period; and an output control circuit that controls a current value for a second welding wire. Because an appropriate welding voltage can be obtained with this configuration, a high welding quality can be realized.
    Type: Application
    Filed: February 22, 2010
    Publication date: September 16, 2010
    Applicant: Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.)
    Inventors: Masahiro YOKOTA, Eiji Sato, Masahiro Honma
  • Publication number: 20100200553
    Abstract: A welding control apparatus according to the present invention includes an integrator for starting calculation of a voltage error integral value Sv2, expressed by a formula (1) given below, from a time when a first pulse period ends and a second pulse period starts in a pulse cycle, based on various data of information regarding a gradient Ks of an external characteristic of a welding power supply and a welding current setting value Is2 and a welding voltage setting value Vs2 both in a second pulse period, which are preset as parameters in the formula (1), as well as on an instantaneous value Io2 of a welding current and an instantaneous value Vo2 of a welding voltage both detected in the second pulse period, a comparator for comparatively determining whether a value of the voltage error integral value Sv2 provided as the calculation result has become 0, and a waveform generator for, per pulse cycle, terminating the relevant pulse cycle and starting a next pulse cycle at a time when the value of the voltage e
    Type: Application
    Filed: January 8, 2010
    Publication date: August 12, 2010
    Applicant: Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.)
    Inventors: Kei YAMAZAKI, Keiichi Suzuki, Masahiro Honma, Eiji Sato
  • Publication number: 20080237196
    Abstract: In consumable electrode type gas shielded arc welding, a time second order differential value of a welding voltage or an arc resistance is calculated. Based on the second order differential value, a detachment of a droplet or a timing just before the detachment is detected. After the droplet detachment or the timing just before the detachment is detected, a welding current value is immediately switched to a predetermined current value lower than that at the time of the detection. According to the control, even if welding conditions are changed or wire extension lengths are changed in the welding, the droplet detachment can be correctly detected.
    Type: Application
    Filed: February 7, 2008
    Publication date: October 2, 2008
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.)
    Inventors: Kei YAMAZAKI, Eiji Sato, Shogo Nakatsukasa, Masahiro Honma, Keiichi Suzuki
  • Publication number: 20070210048
    Abstract: Disclosed is a pulsed arc welding method using a pulse current of alternately repeating first and second pulses as a weld current, wherein the first pulse and the second pulse have a pulse waveform of a different pulse peak current level and a different pulse width, respectively, and the following conditions are satisfied: peak current of the first pulse (Ip1)=300 to 700A; peak period (Tp1)=0.3 to 5.0 ms; base current Ib1=30 to 200A, base period (Tb1)=0.3 to 10 ms; peak current of the second pulse (Ip2)=200 to 600A; peak period (Tp2)=1.0 to 15 ms; base current (Ib2)=30 to 200A; and base period (Tb2)=3.0 to 20 ms. In this manner, the consumable electrode arc welding using carbon dioxide gas alone or a mixed gas made mainly of carbon dioxide gas as a shield gas can benefit from stabilized welding arc, improved regularity of droplet transfer, and significantly reduced generation rates of spatters and fumes.
    Type: Application
    Filed: February 2, 2007
    Publication date: September 13, 2007
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Fusaki Koshiishi, Keiichi Suzuki, Kei Yamazaki, Masahiro Honma
  • Publication number: 20070102409
    Abstract: In a pulsed arc welding method of the invention, a shield gas made mainly of carbon dioxide gas is used, and a low frequency pulse of 30 to 100 Hz is continuously generated, on which a high frequency pulse with a pulse frequency of 500 to 2000 Hz is superimposed. In this case, the welding current is determined such that an average peak current IPavg is at 300 to 700 A, an average base time Tb is at 5 to 30 ms, a current amplitude IP-a at a peak time of a high frequency pulse is at 50 to 600 A, and a current amplitude IPb at a base time of a high frequency pulse is at 20 to 200 A. This method ensures a reduced degree of biasing of a drop and an arc, for which the size, release time and release direction of a drop are kept substantially completely constant, and can achieve drop transfer wherein regularity of one pulse group-one drop transfer is very high. Hence, spatter and fume generation rates can be remarkably reduced.
    Type: Application
    Filed: September 7, 2006
    Publication date: May 10, 2007
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Fusaki Koshiishi, Keiichi Suzuki, Kei Yamazaki, Masahiro Honma
  • Patent number: 5033293
    Abstract: An alcohol concentration detecting device is disclosed, which comprises an alcohol sensor of capacitance type having a probe portion which is to be submerged in an alcohol-mixed fuel, the alcohol sensor issuing an output signal which varies in accordance with the concentration of alcohol in the alcohol-mixed fuel; a first oscillating circuit which receives the output signal of the alcohol sensor and issues a variable pulse signal whose duty ratio is variable in accordance with the output signal; a second oscillating circuit which issues a reference pulse signal, the reference pulse signal being the same as the pulse signal which is provided by the first oscillating circuit when there is no alcohol in the fuel; and an alcohol concentration detecting circuit which receives and compares the variable pulse signal and the reference pulse signal and issues an alcohol concentration representing signal which is variable in accordance with a difference in duty ratio between the variable pulse signal and the reference
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: July 23, 1991
    Assignee: Calsonic Corporation
    Inventors: Masahiro Honma, Fumio Hagi, Yukihiro Niide, Takenosuke Sano, Koji Iwahashi
  • Patent number: 4877941
    Abstract: A power supply system for consumable electrode arc welding alternately switches between the reverse polarity and the straight polarity. The formation of an arc is detected. A polarity change control signal is generated when the arc duration reaches a predetermined time or when the quantity of charge reaches a predetermined value. The predetermined value of the welding current or voltage is reduced either immediately before or after the change in polarity.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: October 31, 1989
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Masahiro Honma, Maruyama Tokuji, Masashi Okada, Yukio Hida
  • Patent number: 4785287
    Abstract: An instrument for detecting the condition of an oil is provided in which an ultrasonic wave having a predetermined waveform is propagated through the oil and assumes a change in waveform in accordance with the particular condition of the oil. The instrument includes an arrangement in which any change in the waveform of the propagated ultrasonic wave is translated into a change in terms of time involving the waveform, which is used for the detection of the particular condition of the oil.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: November 15, 1988
    Assignee: Nihon Radiator Co., Ltd.
    Inventors: Masahiro Honma, Tadashi Nagai
  • Patent number: 4526145
    Abstract: A pair of solenoids are disposed coaxially with and around a hollow cylindrical cut-off valve. The valve includes an inner non-magnetic sleeve and an outer permanent magnet sleeve. The cut-off valve slidably engages a fuel distributing plunger which injects fuel according to its axial reciprocation. The cut-off valve controls fuel injection quantity via timing of exposure of a fuel injection cut-off port in the plunger. When the pair of solenoids are energized in accordance with operating parameters of the engine, the cut-off valve is moved to a corresponding position along the plunger. A sensor senses the actual position of the cut-off valve for feedback control thereof. A pair of disc-like permanent magnets may be disposed opposite either extreme of travel of the cut-off valve in spaced relationship thereto. A pair of non-magnetic discs may be disposed in place of the pair of disc-like permanent magnets.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: July 2, 1985
    Assignee: Nissan Motor Company, Limited
    Inventors: Masahiro Honma, Iwane Inokuchi