Patents by Inventor Masatoshi Tanaka
Masatoshi Tanaka 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: 20240117664Abstract: An opening and closing body control device includes a distance detection unit that detects a detection distance, which is a distance to a detected object around an opening and closing body, and a control unit. When a start command is input, the control unit determines whether the detected object is a moving object or a stationary object, sets a first or second collision determination distance as a collision determination distance depending on whether the detected object is moving or stationary. When the detection distance is smaller than the collision determination distance, the control unit controls the drive unit to stop operation of the opening and closing body.Type: ApplicationFiled: September 19, 2023Publication date: April 11, 2024Inventors: Masatoshi TANAKA, Etsuro WATANABE
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Publication number: 20230075250Abstract: A process fiber including a core extending along a central axis and a clad covering a circumference of the core includes an outer edge portion constituting an outer edge of a core cross section obtained by vertically cutting the core. The outer edge portion includes seven sides and seven corner portions respectively connecting the sides adjacent to each other. Each of the corner portions has an R shape along a circumscribed circle circumscribed to the outer edge portion. When a diameter of the circumscribed circle is O, a diameter of an inscribed circle inscribed to the outer edge portion is I, and the number of the corner portions is n (n is an odd number), a diameter ratio ?, which is a ratio between the diameter O of the circumscribed circle and the diameter I of the inscribed circle, fulfills a predetermined condition.Type: ApplicationFiled: February 24, 2021Publication date: March 9, 2023Inventors: Ryouhei ITO, Hiroaki ISHIGURO, Masatoshi TANAKA, Tomohiko ISHIDA, Seongjin KIM
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Patent number: 11460758Abstract: A projector according to the present disclosure includes a projection optical unit section including a projection lens, a speaker section, and a chassis having a first holding part configured to hold the projection optical unit section, and a second holding part which is stacked along a first direction with respect to the first holding part, and is configured to hold the speaker section, wherein light emitted from the projection lens spreads toward a second direction perpendicular to the first direction in a plane including the first direction and an optical axis of the projection lens, and in the light emitted from the projection lens, a divergence angle at an opposite side to the first direction with respect to the second direction is smaller than a divergence angle at the first direction side with respect to the second direction.Type: GrantFiled: June 29, 2021Date of Patent: October 4, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Masatoshi Tanaka, Takuya Hatano, Nobuyuki Otsuki
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Patent number: 11452424Abstract: An electric vacuum cleaner apparatus includes: a station, an electric vacuum cleaner attachable to the station, and plural attaching detectors which can detect the electric vacuum cleaner is attached in the station. The electric vacuum cleaner includes a cleaner body; a tubular part connected to the cleaner body and sucks in dust; and a primary dust container that stores dust sucked in with the tubular part. The station includes a secondary dust container that stores dust discharged from the primary dust container. The electric vacuum cleaner apparatus permits transfer of dust from the primary dust container to the secondary dust container when at least two of the plural attaching detectors have detected the attaching of the electric vacuum cleaner to the station.Type: GrantFiled: June 18, 2018Date of Patent: September 27, 2022Assignee: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATIONInventors: Tsuyoshi Sato, Masatoshi Tanaka, Yukio Machida
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Patent number: 11406236Abstract: An electric vacuum cleaning apparatus includes a station and an electric vacuum cleaner connectable/disconnectable from the station. The electric vacuum cleaner includes: a coarse-dust collecting chamber that accumulates coarse dust separated with a first separator; a filter chamber that accumulates fine dust separated with a filter; a coarse-dust waste-outlet that discharges the coarse dust from the coarse-dust collecting chamber; a fine-dust waste-outlet adjacent to the coarse-dust waste-outlet and discharges the fine dust from the filter chamber; and a waste-outlet lid that opens/closes both the coarse-dust waste-outlet and fine-dust waste-outlet together.Type: GrantFiled: June 22, 2018Date of Patent: August 9, 2022Assignee: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATIONInventors: Masatoshi Tanaka, Satoshi Goto, Yukio Machida
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Patent number: 11385431Abstract: The coated optical fiber (10) includes: an optical fiber (11) including a core (111) and a cladding (112); a first buffer layer (121) covering the optical fiber (11), and having a refractive index lower than that of the cladding (112) and a Shore D hardness of D/20.0/1 or higher; a second buffer layer (122) covering the first buffer layer (121), and having a higher Shore D hardness than the first buffer layer (121); and a jacket (13) covering the second buffer layer (122).Type: GrantFiled: December 12, 2017Date of Patent: July 12, 2022Assignee: Mitshishi Cable Industries, Ltd.Inventors: Masatoshi Tanaka, Yoshiki Yamakawa, Hideaki Itou, Daiki Tabei
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Patent number: 11272820Abstract: A vacuum cleaner includes a primary dust container that includes a container body, the container body delineating a dust collecting chamber that accumulates dust sucked into the vacuum cleaner and including a waste outlet that discharges the dust accumulated in the dust collecting chamber, the primary dust container also including a waste-outlet lid that opens and closes the waste outlet. A station includes a secondary dust container that accumulates the dust discharged from the primary dust container, and a driving source that generates opening driving force and closing driving force for the waste outlet. The electric vacuum cleaner generates a driving force for opening and closing an air passage connecting a primary dust container and a secondary dust container, without impairing convenience of a vacuum cleaner.Type: GrantFiled: June 2, 2017Date of Patent: March 15, 2022Assignee: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATIONInventors: Tsuyoshi Sato, Masatoshi Tanaka, You Torizawa, Yukio Machida, Hiromitsu Ichikawa, Hiromitsu Murata, Takayoshi Shimizu, Yuuji Ohtsuka
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Publication number: 20220004088Abstract: A projector according to the present disclosure includes a projection optical unit section including a projection lens, a speaker section, and a chassis having a first holding part configured to hold the projection optical unit section, and a second holding part which is stacked along a first direction with respect to the first holding part, and is configured to hold the speaker section, wherein light emitted from the projection lens spreads toward a second direction perpendicular to the first direction in a plane including the first direction and an optical axis of the projection lens, and in the light emitted from the projection lens, a divergence angle at an opposite side to the first direction with respect to the second direction is smaller than a divergence angle at the first direction side with respect to the second direction.Type: ApplicationFiled: June 29, 2021Publication date: January 6, 2022Inventors: Masatoshi TANAKA, Takuya HATANO, Nobuyuki OTSUKI
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Patent number: 11217218Abstract: A sound absorber includes a side surface section (a first wall section) in which a plurality of first holes are provided, the side surface section including a first surface and a second surface, a thin film stuck to the first surface of the side surface section, a partition wall (a second wall section) opposed to the second surface and provided in a position separated from the second surface, at least one second hole being provided in the partition wall, and a porous material provided to be opposed to the second wall section in a position separated from the partition wall.Type: GrantFiled: October 15, 2018Date of Patent: January 4, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Norikazu Kadotani, Ken Terai, Yoshiaki Iwatani, Masatoshi Tanaka, Shin Aruga
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Patent number: 11121491Abstract: A receptacle connector includes a receptacle including an insertion port into which a plug is inserted, a lid configured to open and close the insertion port and maintain, while the plug is inserted into the insertion port, a state in which the lid is opened by the plug, and a switch configured to change over according to the opening and closing of the lid.Type: GrantFiled: December 13, 2019Date of Patent: September 14, 2021Assignee: SEIKO EPSON CORPORATIONInventors: Ke Wang, Nobuyuki Otsuki, Takashi Akahane, Masatoshi Tanaka, Takeshi Tamura
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Publication number: 20200315419Abstract: A vacuum cleaner includes a primary dust container that includes a container body, the container body delineating a dust collecting chamber that accumulates dust sucked into the vacuum cleaner and including a waste outlet that discharges the dust accumulated in the dust collecting chamber, the primary dust container also including a waste-outlet lid that opens and closes the waste outlet. A station includes a secondary dust container that accumulates the dust discharged from the primary dust container, and a driving source that generates opening driving force and closing driving force for the waste outlet. The electric vacuum cleaner generates a driving force for opening and closing an air passage connecting a primary dust container and a secondary dust container, without impairing convenience of a vacuum cleaner.Type: ApplicationFiled: June 2, 2017Publication date: October 8, 2020Applicant: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATIONInventors: Tsuyoshi SATO, Masatoshi TANAKA, You TORIZAWA, Yukio MACHIDA, Hiromitsu ICHIKAWA, Hiromitsu MURATA, Takayoshi SHIMIZU, Yuuji OHTSUKA
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Publication number: 20200194917Abstract: A receptacle connector includes a receptacle including an insertion port into which a plug is inserted, a lid configured to open and close the insertion port and maintain, while the plug is inserted into the insertion port, a state in which the lid is opened by the plug, and a switch configured to change over according to the opening and closing of the lid.Type: ApplicationFiled: December 13, 2019Publication date: June 18, 2020Applicant: SEIKO EPSON CORPORATIONInventors: Ke WANG, Nobuyuki OTSUKI, Takashi AKAHANE, Masatoshi TANAKA, Takeshi TAMURA
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Publication number: 20200178742Abstract: An electric vacuum cleaner and an electric vacuum cleaning apparatus that can accumulate dust intensively near its waste lid and can readily discharge the accumulated dust. An electric vacuum cleaner includes: a first separator that separates dust from dust-containing air; a coarse-dust collecting chamber that accumulates the dust separated with the first separator; a coarse-dust waste-outlet that discharges the dust from the coarse-dust collecting chamber; a recess part provided within the coarse-dust collecting chamber, communicates with the coarse-dust waste-outlet, and accumulates dust inside the coarse-dust collecting chamber; and a waste-outlet lid that is part of a wall of the recess part and opens and closes the coarse-dust waste-outlet.Type: ApplicationFiled: June 22, 2018Publication date: June 11, 2020Applicant: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATIONInventors: Masatoshi TANAKA, You TORIZAWA, Yukio MACHIDA
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Publication number: 20200154967Abstract: An electric vacuum cleaner apparatus includes: a station, an electric vacuum cleaner attachable to the station, and plural attaching detectors which can detect the electric vacuum cleaner is attached in the station. The electric vacuum cleaner includes a cleaner body; a tubular part connected to the cleaner body and sucks in dust; and a primary dust container that stores dust sucked in with the tubular part. The station includes a secondary dust container that stores dust discharged from the primary dust container. The electric vacuum cleaner apparatus permits transfer of dust from the primary dust container to the secondary dust container when at least two of the plural attaching detectors have detected the attaching of the electric vacuum cleaner to the station.Type: ApplicationFiled: June 18, 2018Publication date: May 21, 2020Applicant: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATIONInventors: Tsuyoshi SATO, Masatoshi TANAKA, Yukio MACHIDA
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Publication number: 20200138255Abstract: An electric vacuum cleaner apparatus includes: an electric vacuum cleaner; a primary dust container that separates and accumulates dust from dust-containing air to be sucked into the electric vacuum cleaner; a waste-outlet lid that opens and closes a waste outlet that discharges the dust from the primary dust container; a station that can store the electric vacuum cleaner; a secondary dust container including the station and fluidly connected to the primary dust container through the waste outlet when storing the electric vacuum in the station; a secondary electric blower that transfers dust from the primary dust container to the secondary dust container by applying negative pressure to the primary dust container through the secondary dust container; and a drive source that generates opening and closing drive force of the waste-outlet lid. The closing drive force is generated after the secondary electric blower stops generating the negative pressure for transferring the dust.Type: ApplicationFiled: June 22, 2018Publication date: May 7, 2020Applicant: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATIONInventors: Tsuyoshi SATO, Masatoshi TANAKA, Yukio MACHIDA
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Publication number: 20200107685Abstract: An electric vacuum cleaning apparatus includes a station and an electric vacuum cleaner connectable/disconnectable from the station. The electric vacuum cleaner includes: a coarse-dust collecting chamber that accumulates coarse dust separated with a first separator; a filter chamber that accumulates fine dust separated with a filter; a coarse-dust waste-outlet that discharges the coarse dust from the coarse-dust collecting chamber; a fine-dust waste-outlet adjacent to the coarse-dust waste-outlet and discharges the fine dust from the filter chamber; and a waste-outlet lid that opens/closes both the coarse-dust waste-outlet and fine-dust waste-outlet together.Type: ApplicationFiled: June 22, 2018Publication date: April 9, 2020Applicant: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATIONInventors: Masatoshi TANAKA, Satoshi GOTO, Yukio MACHIDA
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Publication number: 20200100637Abstract: A vacuum cleaner includes a main body case which includes a main body connection port at a front side, a pair of wheels provided on the left and right side portions of the main body case to support the main body case movably and conceals at least a back surface of the main body case when viewed in a rotation axis direction, and a secondary battery provided in an area sandwiched between the pair of wheels and arranged in conformity with the shape of the main body case.Type: ApplicationFiled: December 5, 2019Publication date: April 2, 2020Applicant: Toshiba Lifestyle Products & Services CorporationInventors: Masatoshi TANAKA, Takayoshi SHIMIZU, Yukio MACHIDA
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Patent number: 10531779Abstract: An electric vacuum cleaning apparatus that offers a high degree of convenience is provided that is capable of easily switching between a function that empties dust from an electric vacuum cleaner by moving dust collected by the cleaner to a station and accumulating the dust at the station, and a function that accumulates dust that is swept up together after quickly performing localized cleaning using an cleaning implement other than the cleaner at the station.Type: GrantFiled: January 6, 2017Date of Patent: January 14, 2020Assignee: Toshiba Lifestyle Products & Services CorporationInventors: Yukio Machida, Masatoshi Tanaka, Satoshi Ohshita, Hiromitsu Ichikawa, Tsuyoshi Sato
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Publication number: 20190346649Abstract: The coated optical fiber (10) includes: an optical fiber (11) including a core (111) and a cladding (112); a first buffer layer (121) covering the optical fiber (11), and having a refractive index lower than that of the cladding (112) and a Shore D hardness of D/20.0/1 or higher; a second buffer layer (122) covering the first buffer layer (121), and having a higher Shore D hardness than the first buffer layer (121); and a jacket (13) covering the second buffer layer (122).Type: ApplicationFiled: December 12, 2017Publication date: November 14, 2019Inventors: Masatoshi TANAKA, Yoshiki YAMAKAWA, Hideaki ITOU, Daiki TABEI
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Publication number: 20190168545Abstract: A tire has a tread pattern comprising a series of a number N of tread design units arranged repeatedly and circumferentially of the tire in a sequence. The tread design units have at least two different circumferential lengths. Viewing the tread design units as pulses, a pulse train is defined. Magnitudes of the pulses are proportional to the circumferential lengths of the tread design units. The average of the magnitudes corresponding to the different circumferential lengths is limited to 1.00. Maximum value Fmax of amplitude F(k) of k-th order (k=1 to 2N) of frequencies obtained by Fourier transforming the pulse train is limited to be 4.52?0.0125 N. The amplitudes F(k) and F(k+1) of every two of the adjacent orders (k) and (k+1) are limited so as not to satisfy a condition that both of the amplitudes F(k) and F(k+1) are 2/3 or more times the Fmax.Type: ApplicationFiled: November 30, 2018Publication date: June 6, 2019Applicant: Sumitomo Rubber Industries, Ltd.Inventors: Tatsuya SASAKI, Emi UEDA, Masatoshi TANAKA, Ken MIYAZAWA, Sawa OGIHARA, Ryuhei SANAE