Patents by Inventor Yoshimi Matsumoto
Yoshimi Matsumoto 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: 20220090222Abstract: A drill tool capable of coping with a rock drill having high output power and a method for producing the drill tool are described. The drill tool is produced by employing, as a drill tool material, an alloy steel composed of the following chemical components: 0.22 to 0.26 wt % of C, 0.15 to 0.35 wt % of Si, 0.55 to 0.80 wt % of Mn, 2.60 to 3.00 wt % of Ni, 1.00 to 1.50 wt % of Cr, 0.20 to 0.30 wt % of Mo, and Fe and inevitable impurities as the balance. Heat treatment with quenching is performed after carburizing performed by means of oil cooling with cold oil and a tempering temperature set at 400 to 440° C.Type: ApplicationFiled: January 15, 2020Publication date: March 24, 2022Inventors: Yoshimi Matsumoto, Genki Fusato
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Patent number: 9896457Abstract: Provided are a compound having a novel mother nucleus, which can be a promising drug discovery seed compound, use thereof as an antifungal agent, and a production method thereof and the like. A compound represented by the following formula: or a pharmaceutically acceptable salt thereof, and an antifungal agent containing same, and the like.Type: GrantFiled: August 29, 2014Date of Patent: February 20, 2018Assignees: OP Bio Factory Co., Ltd., Seed Research Institute Co., Ltd.Inventors: Morita Iwami, Sachi Kato, Yoshimi Matsumoto, Hideo Naoki
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Patent number: 9801850Abstract: The present invention provides an epigallocatechin gallate derivative (EGCG derivative) that has excellent safety and antibacterial properties. An epigallocatechin gallate derivative represented by the following chemical formula (1), an isomer thereof, or a salt thereof is used as an antibacterial agent. In the formula, R1 to R6 are each a hydrogen atom, halogen, sodium, potassium, or a straight-chain or branched, saturated or unsaturated acyl group and may be identical to or different from one another. The acyl group may be substituted further with one or more substituents. At least one of the R1 to R6 is the acyl group. R7 to R16 are each a hydrogen atom, halogen, sodium, or potassium and may be identical to or different from one another.Type: GrantFiled: July 30, 2010Date of Patent: October 31, 2017Assignee: OSAKA UNIVERSITYInventors: Kunihiro Kaihatsu, Yoshimi Matsumoto
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Patent number: 9399788Abstract: The present disclosure describes a method capable of easily and rapidly inspecting the susceptibility of bacteria or fungi to an antimicrobial drug. The inspection method of the present disclosure is a method for inspecting susceptibility of bacteria or fungi to an antimicrobial drug using a micro-device having flow channels, including: incubating a mixture of the antimicrobial drug and a suspension to be inspected in the flow channels of the micro-device; and detecting bacteria or fungi derived from the suspension to be inspected in an observation area of the flow channels of the micro-device. The detecting step can be performed by detecting an increase or decrease in the number of or a change in shape of bacteria or fungi derived from the suspension to be inspected in the observation area by a microscope or the like.Type: GrantFiled: August 31, 2012Date of Patent: July 26, 2016Assignees: Osaka University, FUKOKU Co., Ltd.Inventors: Yoshimi Matsumoto, Kohei Hayama, Shouichi Sakakihara, Kunihiko Nishino, Akihito Yamaguchi, Hiroyuki Noji, Ryota Iino
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Publication number: 20160207937Abstract: Provided are a compound having a novel mother nucleus, which can be a promising drug discovery seed compound, use thereof as an antifungal agent, and a production method thereof and the like. A compound represented by the following formula: or a pharmaceutically acceptable salt thereof, and an antifungal agent containing same, and the like.Type: ApplicationFiled: August 29, 2014Publication date: July 21, 2016Applicants: OP BIO FACTORY CO., LTD., SEED RESEARCH INSTITUTE CO., LTD.Inventors: Morita IWAMI, Sachi KATO, Yoshimi MATSUMOTO, Hideo NAOKI
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Publication number: 20140349333Abstract: The present invention provides a novel method capable of easily and rapidly inspecting the susceptibility of bacteria or fungi to an antimicrobial drug and an inspection system for use in the method. The inspection method of the present invention is a method for inspecting susceptibility of bacteria or fungi to an antimicrobial drug using a micro-device having a flow channel, including: an incubating step of incubating a mixture of the antimicrobial drug and a bacterial suspension to be inspected in the flow channel of the micro-device; and a detecting step of detecting bacteria or fungi derived from the bacterial suspension to be inspected in an observation area of the flow channel of the micro-device. The detecting step can be performed by detecting an increase or decrease in the number of or a change in shape of bacteria or fungi derived from the bacterial suspension to be inspected in the observation area by a microscope or the like.Type: ApplicationFiled: August 31, 2012Publication date: November 27, 2014Applicants: OSAKA UNIVERSITY, FLUIDWARE TECHNOLOGIES INC., FUKOKU CO., LTD.Inventors: Yoshimi Matsumoto, Kohei Hayama, Shouichi Sakakihara, Kunihiko Nishino, Akihito Yamaguchi, Hiroyuki Noji, Ryota Iino
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Patent number: 8581566Abstract: A power supply control method of performing a feedback control of an output voltage based on a deviation signal for a standard voltage value serving as a target value for the output voltage and a digital signal generated by analog/digital (A/D) conversion of the output voltage, the method includes selecting a range of the reference voltage for the A/D conversion based on the digital signal in a power supply startup period, and selecting a range of the reference voltage for the A/D conversion based on the deviation signal or a signal corresponding to the deviation signal in a steady state period.Type: GrantFiled: September 10, 2012Date of Patent: November 12, 2013Assignee: Renesas Electronics CorporationInventors: Hideyuki Takahashi, Yoshimi Matsumoto
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Patent number: 8564268Abstract: A power supply controller includes a switching circuit which, in response to a control signal, transfers an analog signal to an output node as an outputted analog signal, the output node being coupled to an inductor and a capacitor, an analog to digital (A/D) converter which converts an outputted analog signal to a digital signal, a pulse width modulation (PWM) generator circuit which produces a PWM signal based on the digital signal, a driver which produces the control signal in response to the PWM signal, and a conversion range setting unit which sets a range data for the A/D converter based on the digital signal during a first period, and which sets the range data based on the PWM signal during a second period.Type: GrantFiled: March 28, 2012Date of Patent: October 22, 2013Assignee: Renesas Electronics CorporationInventors: Hideyuki Takahashi, Yoshimi Matsumoto
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Publication number: 20130002222Abstract: A power supply control method of performing a feedback control of an output voltage based on a deviation signal for a standard voltage value serving as a target value for the output voltage and a digital signal generated by analog/digital (A/D) conversion of the output voltage, the method includes selecting a range of the reference voltage for the A/D conversion based on the digital signal in a power supply startup period, and selecting a range of the reference voltage for the A/D conversion based on the deviation signal or a signal corresponding to the deviation signal in a steady state period.Type: ApplicationFiled: September 10, 2012Publication date: January 3, 2013Applicant: Renesas Electronics CorporationInventors: Hideyuki Takahashi, Yoshimi Matsumoto
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Patent number: 8310220Abstract: A power supply controller includes an analog to digital (A/D) converter that performs analog-digital conversion of an output voltage and outputs a digital signal, a deviation signal generator unit that generates a deviation signal from the digital signal and a standard voltage value serving as an output voltage target value, and a power controller unit that controls the output voltage based on the deviation signal. The power supply controller includes a conversion range setting unit that sets a range of the reference voltage into the A/D converter based on a first signal as the digital signal in a power supply startup period, and sets the reference voltage range into the A/D converter based on a second signal as the deviation signal or as a signal corresponding to the deviation signal in a steady state period.Type: GrantFiled: August 19, 2009Date of Patent: November 13, 2012Assignee: Renesas Electronics CorporationInventors: Hideyuki Takahashi, Yoshimi Matsumoto
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Publication number: 20120182002Abstract: A power supply controller includes a switching circuit which, in response to a control signal, transfers an analog signal to an output node as an outputted analog signal, the output node being coupled to an inductor and a capacitor, an analog to digital (A/D) converter which converts an outputted analog signal to a digital signal, a pulse width modulation (PWM) generator circuit which produces a PWM signal based on the digital signal, a driver which produces the control signal in response to the PWM signal, and a conversion range setting unit which sets a range data for the A/D converter based on the digital signal during a first period, and which sets the range data based on the PWM signal during a second period.Type: ApplicationFiled: March 28, 2012Publication date: July 19, 2012Inventors: Hideyuki Takahashi, Yoshimi Matsumoto
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Publication number: 20120136049Abstract: The present invention provides an epigallocatechin gallate derivative (EGCG derivative) that has excellent safety and antibacterial properties. An epigallocatechin gallate derivative represented by the following chemical formula (1), an isomer thereof, or a salt thereof is used as an antibacterial agent. In the formula, R1 to R6 are each a hydrogen atom, halogen, sodium, potassium, or a straight-chain or branched, saturated or unsaturated acyl group and may be identical to or different from one another. The acyl group may be substituted further with one or more substituents. At least one of the R1 to R6 is the acyl group. R7 to R16 are each a hydrogen atom, halogen, sodium, or potassium and may be identical to or different from one another.Type: ApplicationFiled: July 30, 2010Publication date: May 31, 2012Applicant: OSAKA UNIVERSITYInventors: Kunihiro Kaihatsu, Yoshimi Matsumoto
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Patent number: 7989100Abstract: A sealed prismatic battery according to the present invention comprises a laterally long cap sealing an opening of an upper surface of a battery can and a safety vent placed on the cap and having a thin-walled valve body which opens in an abnormal rise of a battery internal pressure. The safety vent has an oval-shaped circumferential groove formed inside an oval-shaped coining section provided on an outer surface of the cap and on one end side in a lateral direction of the cap and a thin-walled valve body surrounded thereby, and the oval-shaped circumferential groove is composed of lateral side sections parallel to the lateral direction of the cap and circular arc sections connecting these lateral side sections, with one lateral side section, other lateral side section, and the thin-walled valve body of the safety vent respectively having a thickness increased in this order.Type: GrantFiled: September 12, 2006Date of Patent: August 2, 2011Assignee: Hitachi Maxell Energy, Ltd.Inventors: Yoshimi Matsumoto, Osamu Watanabe, Yoshiki Somatomo
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Publication number: 20100052639Abstract: A power supply controller includes an analog to digital (A/D) converter that performs analog-digital conversion of an output voltage and outputs a digital signal, a deviation signal generator unit that generates a deviation signal from the digital signal and a standard voltage value serving as an output voltage target value, and a power controller unit that controls the output voltage based on the deviation signal. The power supply controller includes a conversion range setting unit that sets a range of the reference voltage into the A/D converter based on a first signal as the digital signal in a power supply startup period, and sets the reference voltage range into the A/D converter based on a second signal as the deviation signal or as a signal corresponding to the deviation signal in a steady state period.Type: ApplicationFiled: August 19, 2009Publication date: March 4, 2010Applicant: NEC Electronics CorporationInventors: Hideyuki Takahashi, Yoshimi Matsumoto
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Publication number: 20070059586Abstract: A sealed prismatic battery according to the present invention comprises a laterally long cap sealing an opening of an upper surface of a battery can and a safety vent placed on the cap and having a thin-walled valve body which opens in an abnormal rise of a battery internal pressure. The safety vent has an oval-shaped circumferential groove formed inside an oval-shaped coining section provided on an outer surface of the cap and on one end side in a lateral direction of the cap and a thin-walled valve body surrounded thereby, and the oval-shaped circumferential groove is composed of lateral side sections parallel to the lateral direction of the cap and circular arc sections connecting these lateral side sections, with one lateral side section, other lateral side section, and the thin-walled valve body of the safety vent respectively having a thickness increased in this order.Type: ApplicationFiled: September 12, 2006Publication date: March 15, 2007Inventors: Yoshimi Matsumoto, Osamu Watanabe, Yoshiki Somatomo
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Publication number: 20060292437Abstract: A sealed prismatic battery includes a laterally elongated cap that closes the upper surface of the opening of a battery can 1 and a safety vent that is provided at the cap and opens when the battery internal pressure abnormally rises. The safety vent has a looped groove that is formed recessed and located nearer to the left end of the cap on the outer surface side of the cap. The looped groove is annularly formed of front, rear, left and right groove portions into a laterally elongated prismatic shape, and the thickness of the bottom wall of the end side groove portion is thicker than that of the bottom walls of the other groove portions. The center side groove portion of the looped groove is formed into a circular arc shape curved convex toward the center side of the cap.Type: ApplicationFiled: November 17, 2005Publication date: December 28, 2006Applicant: HITACHI MAXELL, LTD.Inventors: Yoshimi Matsumoto, Osamu Watanabe, Yoshiki Somatomo
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Patent number: 6369050Abstract: The invention provides an antimicrobial agent capable of producing an excellent effect in the prevention or treatment of bacteria of two or more genera selected from among Streptococcus, Moraxella, Haemophilus, Klebsiella and the like. The agent comprises a penicillin antibiotic, in particular amoxicillin, and a cephem antibiotic, in particular cefixime or cefdinir. The antimicrobial agent of the invention is administered in the form of a mixed preparation containing both or in the form of individual preparations respectively containing them for combined administration.Type: GrantFiled: November 17, 2000Date of Patent: April 9, 2002Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Yoshimi Matsumoto, Shuichi Tawara, Hitoshi Nishio, Takashi Harimoto, Ryoji Sekiyama
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Patent number: 6328989Abstract: The present invention relates to the use of bicozamycins for the prophylaxis and treatment of infections with a verotoxin-producing E. coli, as well as for eradicating verotoxin-producing E. coli in livestock.Type: GrantFiled: May 30, 2000Date of Patent: December 11, 2001Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Yoshimi Matsumoto, Akiko Ikemoto, Chizu Morinaga, Shuichi Tawara, Yoshiko Yokota
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Patent number: 5654707Abstract: A parallel-to-serial data conversion circuit includes a control circuit receiving a load signal, a clock signal and high-order 4 bits of a parallel data of 8-bit PCM code excluding the MSB bit, for generating a first control signal and a second control signal, a 6-bit shift register receiving the first control signal, the second control signal, low-order 4 bits of the parallel data, a store signal and the clock signal, and a selector for selecting the output of the shift register on the basis of the MSB bit and the first control signal.Type: GrantFiled: December 28, 1994Date of Patent: August 5, 1997Assignee: NEC CorporationInventor: Yoshimi Matsumoto
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Patent number: 5379038Abstract: A parallel-serial data converter according to the present invention comprises a n-th latch circuit which latches the sign bit at the most significant bit of parallel data, a n-1th selector which selects either of the n-1th bit or the ground level, a n-1th latch circuit which latches the output from the selector n-1, a i-th selector which selects either of the i-th bit (i=n-2, n-3, . . .Type: GrantFiled: August 4, 1993Date of Patent: January 3, 1995Assignee: NEC CorporationInventor: Yoshimi Matsumoto