Patents by Inventor Shoichi Murata
Shoichi Murata 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: 20240118406Abstract: A sensor includes a complex-transfer-function calculator that calculates a complex transfer function from received signals, a reflection-coefficient calculator that calculates a reflection coefficient using a complex transfer function when an object to be detected is arranged at one of L positions and an ideal complex transfer function which is a theoretical value for the position at which the object to be detected is arranged, various normalizers that calculate a normalized reflection coefficient by normalizing the reflection coefficient, a reflection-coefficient interpolator that calculates an interpolated reflection coefficient by interpolation calculation of the reflection coefficient using the normalized reflection coefficient for each coordinates used in position estimation of the object to be detected, and a position estimator that corrects the position estimation, using a steering vector and the interpolated reflection coefficient that are determined based on the position of each of the transmitting aType: ApplicationFiled: December 14, 2021Publication date: April 11, 2024Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Takeshi NAKAYAMA, Shoichi IIZUKA, Naoki HONMA, Tomonori ITO, Teppei HAYASHI, Nobuyuki SHIRAKI, Kentaro MURATA
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Publication number: 20240118407Abstract: A sensor receives M reception signals including reflection signals reflected by a living body; extracts a living-body component transfer function matrix from first complex transfer functions and second complex transfer functions, the first complex transfer functions being obtained by recording an M×N complex transfer function matrix including complex transfer functions in time series, from M reception signals, the complex transfer functions each indicating characteristics of propagation between a corresponding one of transmission antenna elements and a corresponding one of reception antenna elements, the second complex transfer functions being obtained by estimating and recording M×N complex transfer functions in a second period, and outputting a position at which a spectrum function indicating a likelihood that a living body is present indicates a local maximum value, using a correlation matrix based on the living-body component complex transfer function matrix and a steering vector corresponding to each ofType: ApplicationFiled: December 22, 2021Publication date: April 11, 2024Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shoichi IIZUKA, Takeshi NAKAYAMA, Naoki HONMA, Nobuyuki SHIRAKI, Kentaro MURATA
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Patent number: 11886144Abstract: Provided are a binder resin composition for toner excellent in low-temperature fusing property, storage stability and durability, a toner for developing electrostatic images that contains the binder resin composition for toner, and a method for producing the binder resin composition for toner. The binder resin composition for toner contains a resin composition (C-P) prepared by condensing an acid group-having crystalline resin (C) and a polyalkyleneimine, and an amorphous resin (A).Type: GrantFiled: February 21, 2019Date of Patent: January 30, 2024Assignee: KAO CORPORATIONInventors: Motomu Shibata, Shoichi Murata
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Patent number: 11841678Abstract: A method for producing a toner, including aggregating and coalescing resin particles and colorant particles in an aqueous medium. The resin particles contain, in the same or different particles, an amorphous polyester-based resin which is a polycondensate of an alcohol component containing an aromatic alcohol and a carboxylic acid component, and a crystalline polyester resin. The colorant particles contain a colorant and an addition polymer of a raw material monomer containing an addition-polymerizing monomer having an aromatic group. A ratio by mass of the colorant to the addition polymer in the colorant particles is 50/50 or more and 95/5 or less.Type: GrantFiled: February 8, 2019Date of Patent: December 12, 2023Assignee: KAO CORPORATIONInventors: Shoichi Murata, Manabu Suzuki, Yuki Wakabayashi
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Patent number: 11768446Abstract: A method for producing a toner, including aggregating and coalescing resin particles and colorant particles. The resin particles contain a composite resin containing a polyester resin segment, an addition polymer resin segment which is an addition polymerized product of a raw material monomer containing a styrenic compound, and a structural unit derived from a bireactive monomer bonding to the polyester resin segment and the addition polymer resin segment via a covalent bond. The colorant particles contain a colorant and an addition polymer of a raw material monomer containing a styrenic compound. The addition polymer contains a structural unit derived from the styrenic compound in the main chain. A ratio by mass of the colorant to the addition polymer in the colorant particles is 50/50 or more and 95/5 or less.Type: GrantFiled: February 8, 2019Date of Patent: September 26, 2023Assignee: KAO CORPORATIONInventors: Shoichi Murata, Manabu Suzuki, Yuki Wakabayashi
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Publication number: 20230096784Abstract: A printing apparatus includes a container that can accommodate roll paper in which recording paper is wound; a cover for opening and closing the container; a transporter, including a transport motor and a transport roller, that pulls the recording paper from the roll paper and transports the recording paper; a printing section that performs printing on the recording paper at a position facing the transport roller; a first substrate that has a controller controlling the printing section; and a second substrate disposed to intersect the first substrate, in which the transport motor is surrounded by the first substrate, the second substrate, and the container and a shaft of the transport motor is disposed parallel to a shaft of the transport roller.Type: ApplicationFiled: September 23, 2022Publication date: March 30, 2023Inventors: Hiroyoshi OKADA, Shoichi MURATA
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Publication number: 20230098048Abstract: A printing apparatus includes a case configured to receive roll paper of a rolled recording medium, a cover rotatably attached to the case to be used to open or close the case, a transport section including a transport motor provided to the case and a transport roller provided to the cover, the transport section being configured to pull the recording medium from the roll paper and transport the recording medium along a recording medium path, and a cut section including a first blade and a first blade motor configured to move the first blade provided to the cover and a second blade provided to the case, the cut section being configured to cut the recording medium.Type: ApplicationFiled: September 23, 2022Publication date: March 30, 2023Inventors: Daisuke YANAGIMACHI, Shin YOKOTA, Shoichi MURATA
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Publication number: 20210033993Abstract: A method for producing a toner, including aggregating and coalescing resin particles and colorant particles. The resin particles contain a composite resin containing a polyester resin segment, an addition polymer resin segment which is an addition polymerized product of a raw material monomer containing a styrenic compound, and a structural unit derived from a bireactive monomer bonding to the polyester resin segment and the addition polymer resin segment via a covalent bond. The colorant particles contain a colorant and an addition polymer of a raw material monomer containing a styrenic compound. The addition polymer contains a structural unit derived from the styrenic compound in the main chain. A ratio by mass of the colorant to the addition polymer in the colorant particles is 50/50 or more and 95/5 or less.Type: ApplicationFiled: February 8, 2019Publication date: February 4, 2021Applicant: KAO CORPORATIONInventors: Shoichi MURATA, Manabu SUZUKI, Yuki WAKABAYASHI
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Publication number: 20210003933Abstract: Provided are a binder resin composition for toner excellent in low-temperature fusing property, storage stability and durability, a toner for developing electrostatic images that contains the binder resin composition for toner, and a method for producing the binder resin composition for toner. The binder resin composition for toner contains a resin composition (C-P) prepared by condensing an acid group-having crystalline resin (C) and a polyalkyleneimine, and an amorphous resin (A).Type: ApplicationFiled: February 21, 2019Publication date: January 7, 2021Applicant: KAO CORPORATIONInventors: Motomu SHIBATA, Shoichi MURATA
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Publication number: 20200363741Abstract: A method for producing a toner, including aggregating and coalescing resin particles and colorant particles in an aqueous medium. The resin particles contain, in the same or different particles, an amorphous polyester-based resin which is a polycondensate of an alcohol component containing an aromatic alcohol and a carboxylic acid component, and a crystalline polyester resin. The colorant particles contain a colorant and an addition polymer of a raw material monomer containing an addition-polymerizing monomer having an aromatic group. A ratio by mass of the colorant to the addition polymer in the colorant particles is 50/50 or more and 95/5 or less.Type: ApplicationFiled: February 8, 2019Publication date: November 19, 2020Applicant: KAO CORPORATIONInventors: Shoichi MURATA, Manabu SUZUKI, Yuki WAKABAYASHI
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Patent number: 10394149Abstract: The present invention provides a toner for development of electrostatic images including a polyester-based resin and a polypropylene-based wax, which is excellent in fusing properties on a polypropylene film. The present invention relates to [1] a resin binder composition for toners for development of electrostatic images which has an endothermic amount ratio ?HCW/W of not less than 0.10 and not more than 0.Type: GrantFiled: May 18, 2016Date of Patent: August 27, 2019Assignee: Kao CorporationInventors: Tomohide Yoshida, Shoichi Murata, Manabu Suzuki, Eiji Shirai
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Patent number: 10331053Abstract: The present invention relates to a process for producing a toner for development of electrostatic images, including step (1): subjecting a polyhydric alcohol component and a polycarboxylic acid component to polycondensation reaction in the presence of a hydroxy group- or carboxy group-containing hydrocarbon wax (W1) to obtain a non-crystalline resin (A) containing a constitutional component derived from the hydrocarbon wax (W1) and also containing a polyester moiety; step (2): dispersing the non-crystalline resin (A) obtained in the step (1) in an aqueous medium to obtain an aqueous dispersion of resin particles (X); step (3): aggregating the resin particles (X) obtained in the step (2) in an aqueous medium in the presence of a crystalline polyester (B) to obtain aggregated particles; and step (4): coalescing the aggregated particles obtained in the step (3).Type: GrantFiled: January 14, 2016Date of Patent: June 25, 2019Assignee: KAO CORPORATIONInventors: Shoichi Murata, Hiroto Hayashi
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Patent number: 10078278Abstract: The present invention relates to a process for producing a toner for development of electrostatic images, including the following steps (1) to (3): Step (1): aggregating resin particles (X) containing a composite resin that contains a segment constituted of a polyester resin (a) obtained by polycondensing an alcohol component containing 80 mol % or more of a propyleneoxide adduct of bisphenol A and a polycarboxylic acid component, and a vinyl-based resin segment containing a constitutional unit derived from a styrene-based compound, in an aqueous medium, to obtain aggregated particles (1); Step (2): aggregating the aggregated particles (1) obtained in the step (1) with resin particles (Y) containing a polyester resin (b) obtained by polycondensing an alcohol component containing 80 mol % or more of an ethyleneoxide adduct of bisphenol A and a polycarboxylic acid component to obtain aggregated particles (2); and Step (3): coalescing the aggregated particles (2) obtained in the step (2).Type: GrantFiled: June 10, 2015Date of Patent: September 18, 2018Assignee: KAO CORPORATIONInventors: Shoichi Murata, Tomohide Yoshida, Hiroto Hayashi, Motomu Shibata
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Publication number: 20180136575Abstract: The present invention provides a toner for development of electrostatic images including a polyester-based resin and a polypropylene-based wax, which is excellent in fusing properties on a polypropylene film. The present invention relates to [1] a resin binder composition for toners for development of electrostatic images which has an endothermic amount ratio ?HCW/W of not less than 0.10 and not more than 0.Type: ApplicationFiled: May 18, 2016Publication date: May 17, 2018Applicant: Kao CorporationInventors: Tomohide YOSHIDA, Shoichi MURATA, Manabu SUZUKI, Eiji SHIRAI
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Publication number: 20180004105Abstract: The present invention relates to a process for producing a toner for development of electrostatic images, including step (1): subjecting a polyhydric alcohol component and a polycarboxylic acid component to polycondensation reaction in the presence of a hydroxy group- or carboxy group-containing hydrocarbon wax (W1) to obtain a non-crystalline resin (A) containing a constitutional component derived from the hydrocarbon wax (W1) and also containing a polyester moiety; step (2): dispersing the non-crystalline resin (A) obtained in the step (1) in an aqueous medium to obtain an aqueous dispersion of resin particles (X); step (3): aggregating the resin particles (X) obtained in the step (2) in an aqueous medium in the presence of a crystalline polyester (B) to obtain aggregated particles; and step (4): coalescing the aggregated particles obtained in the step (3).Type: ApplicationFiled: January 14, 2016Publication date: January 4, 2018Applicant: KAO CORPORATIONInventors: Shoichi MURATA, Hiroto HAYASHI
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Publication number: 20170199473Abstract: The present invention relates to a process for producing a toner for development of electrostatic images, including the following steps (1) to (3): Step (1): aggregating resin particles (X) containing a composite resin that contains a segment constituted of a polyester resin (a) obtained by polycondensing an alcohol component containing 80 mol % or more of a propyleneoxide adduct of bisphenol A and a polycarboxylic acid component, and a vinyl-based resin segment containing a constitutional unit derived from a styrene-based compound, in an aqueous medium, to obtain aggregated particles (1); Step (2): aggregating the aggregated particles (1) obtained in the step (1) with resin particles (Y) containing a polyester resin (b) obtained by polycondensing an alcohol component containing 80 mol % or more of an ethyleneoxide adduct of bisphenol A and a polycarboxylic acid component to obtain aggregated particles (2); and Step (3): coalescing the aggregated particles (2) obtained in the step (2).Type: ApplicationFiled: June 10, 2015Publication date: July 13, 2017Applicant: KAO CORPORATIONInventors: Shoichi MURATA, Tomohode YOSHIDA, Hiroto HAYASHI, Motomu SHIBATA
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Patent number: 9557667Abstract: The present invention relates to a process for producing a resin particle dispersion, including a step (1) of mixing a polyester resin and a basic aqueous solution to obtain a resin neutralized product; and a step (2) of adding an aqueous medium to the resin neutralized product obtained in the step (1) to emulsify the resin neutralized product, in which a concentration of an ester group in the polyester resin is from 6.3 to 12 mmol/g, a pH of the basic aqueous solution as measured at 25° C. is from 8.5 to 13.5, and a content of an organic solvent in the resin neutralized product is not more than 10% by mass; and a process for producing a toner for development of electrostatic images, including steps of aggregating and coalescing the resin particles in the obtained resin particle dispersion.Type: GrantFiled: January 14, 2014Date of Patent: January 31, 2017Assignee: KAO CORPORATIONInventors: Takahiro Yoshikawa, Shoichi Murata
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Publication number: 20160026101Abstract: The present invention relates to a process for producing a resin particle dispersion, including a step (1) of mixing a polyester resin and a basic aqueous solution to obtain a resin neutralized product; and a step (2) of adding an aqueous medium to the resin neutralized product obtained in the step (1) to emulsify the resin neutralized product, in which a concentration of an ester group in the polyester resin is from 6.3 to 12 mmol/g, a pH of the basic aqueous solution as measured at 25° C. is from 8.5 to 13.5, and a content of an organic solvent in the resin neutralized product is not more than 10% by mass; and a process for producing a toner for development of electrostatic images, including steps of aggregating and coalescing the resin particles in the obtained resin particle dispersion.Type: ApplicationFiled: January 14, 2014Publication date: January 28, 2016Applicant: KAO CORPORATIONInventors: Takahiro YOSHIKAWA, Shoichi MURATA
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Patent number: 9227445Abstract: A printing device has an outside cover 17 that pivots in a closing direction from an open position and moves to a closed position; a stationary-side pressure lever 32 that rotates in the same direction as the closing direction from a stationary-side release position where a stationary-side media pressure part is separated from the conveyance path surface, and moves to a stationary-side pressure position wherein roll paper is pressed to the conveyance path surface by the stationary-side media pressure part when the outside cover 17 rotates in the closing direction; and a movable-side pressure lever 52 that rotates in the opposite direction as the closing direction from a movable-side release position where a movable-side media pressure part is separated from the conveyance path surface, and moves to a movable-side pressure position wherein roll paper is pressed to the conveyance path surface by the movable-side media pressure part when the outside cover 17 rotates in the closing direction.Type: GrantFiled: December 2, 2014Date of Patent: January 5, 2016Assignee: Seiko Epson CorporationInventors: Shoichi Murata, Kenichi Hirabayashi
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Patent number: D739459Type: GrantFiled: May 2, 2014Date of Patent: September 22, 2015Assignee: SEIKO EPSON CORPORATIONInventors: Shoichi Murata, Kenichi Hirabayashi, Hiroto Miyauchi, Ayumu Nakamura