Patents by Inventor Taku Ishizawa
Taku Ishizawa 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: 20230173814Abstract: Convenience of an ink bottle and a bottle set is improved. An ink bottle includes: a container portion that contains ink; a guiding portion that is formed in one end portion of the container portion, and includes an outflow port from which the ink in the container portion flow out; and a cover that covers at least an end portion of the container portion on the opposite side of the guiding portion.Type: ApplicationFiled: February 2, 2023Publication date: June 8, 2023Applicant: SEIKO EPSON CORPORATIONInventors: Taku ISHIZAWA, Tadahiro MIZUTANI, Ryoichi TANAKA, Manabu AKAHANE, Koichi TOBA, Takumi NAGASHIMA, Yoshiaki SHIMIZU, Tadashi WATANABE, Noriyuki FUKASAWA
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Patent number: 11667123Abstract: An ink refill container configured to refill an ink tank with ink and an ink refill system. An ink refill container includes a container main body having an ink chamber; an ink outlet forming portion provided at an edge of the container main body including an ink outlet configured to allow ink to flow out from the ink chamber; a valve provided in ink outlet forming portion and configured to seal the ink outlet in an openable and closable manner; and a positioning structure configured to abut on part of the ink tank and position the valve relative to ink tank when valve is opened. The positioning structure has a positioning surface located on an opposite side to a container main body side where the container main body is located, across the valve and extends in a direction intersecting with a center axis of the ink outlet.Type: GrantFiled: September 16, 2022Date of Patent: June 6, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Tadahiro Mizutani, Taku Ishizawa, Noriyuki Fukasawa, Naomi Kimura, Shoma Kudo, Manabu Akahane
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Publication number: 20230136126Abstract: An ink replenishment container includes a container main body, an ink outlet forming section, and a valvehaving elasticity. An exterior of the valve is circular in plan view and has two or more slits that extend from a center toward a circumference so as to be joined at the center, two inclined surfaces toward the slit are formed for each of the slits so as to interpose the slit therebetween like a valley when viewed from the ink outlet side, and when a pressure difference positive in a direction from an inside of the ink replenishment container to an outside thereof acts on inner sides of the two inclined surfaces, the slits are closed, and when a pressure difference positive in a direction from the outside of the ink replenishment container to the inside thereof acts on outer sides of the two inclined surfaces, the slits are opened.Type: ApplicationFiled: November 3, 2022Publication date: May 4, 2023Applicant: SEIKO EPSON CORPORATIONInventors: Tadahiro MIZUTANI, Yoshihiro KOIZUMI, Taku ISHIZAWA, Tadashi WATANABE
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Publication number: 20230088212Abstract: There is provided an ink replenishment container for replenishing ink into an ink tank via an ink inlet flow path member having a plurality of flow paths, the ink replenishment container including a container main body, an ink outlet forming portion, and an outlet valve unit. The outlet valve unit includes a valve housing mounted to provide a gap with an inner peripheral surface of a tubular portion in the tubular portion, a sealing member, and a valve body movable between a valve close state in contact with the sealing member and a valve open state separated from the sealing member. The valve body has a partition contact portion capable of contacting a partition of the ink inlet flow path member. The valve housing has a through-hole that communicates with the gap, and the through-hole communicates with the ink inlet flow path member in the valve open state.Type: ApplicationFiled: September 16, 2022Publication date: March 23, 2023Applicant: SEIKO EPSON CORPORATIONInventors: Tadahiro MIZUTANI, Yoshihiro KOIZUMI, Taku ISHIZAWA, Tadashi WATANABE
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Patent number: 11597207Abstract: Convenience of an ink bottle and a bottle set is improved. An ink bottle includes: a container portion that contains ink; a guiding portion that is formed in one end portion of the container portion, and includes an outflow port from which the ink in the container portion flow out; and a cover that covers at least an end portion of the container portion on the opposite side of the guiding portion.Type: GrantFiled: November 2, 2021Date of Patent: March 7, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Taku Ishizawa, Tadahiro Mizutani, Ryoichi Tanaka, Manabu Akahane, Koichi Toba, Takumi Nagashima, Yoshiaki Shimizu, Tadashi Watanabe, Noriyuki Fukasawa
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Publication number: 20230016176Abstract: An ink refill container configured to refill an ink tank with ink and an ink refill system. An ink refill container includes a container main body having an ink chamber; an ink outlet forming portion provided at an edge of the container main body including an ink outlet configured to allow ink to flow out from the ink chamber; a valve provided in ink outlet forming portion and configured to seal the ink outlet in an openable and closable manner; and a positioning structure configured to abut on part of the ink tank and position the valve relative to ink tank when valve is opened. The positioning structure has a positioning surface located on an opposite side to a container main body side where the container main body is located, across the valve and extends in a direction intersecting with a center axis of the ink outlet.Type: ApplicationFiled: September 16, 2022Publication date: January 19, 2023Applicant: SEIKO EPSON CORPORATIONInventors: Tadahiro MIZUTANI, Taku ISHIZAWA, Noriyuki FUKASAWA, Naomi KIMURA, Shoma KUDO, Manabu AKAHANE
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Patent number: 11541662Abstract: An ink refill container configured to refill an ink tank with ink and an ink refill system. An ink refill container includes a container main body having an ink chamber; an ink outlet forming portion provided at an edge of the container main body including an ink outlet configured to allow ink to flow out from the ink chamber; a valve provided in ink outlet forming portion and configured to seal the ink outlet in an openable and closable manner; and a positioning structure configured to abut on part of the ink tank and position the valve relative to ink tank when valve is opened. The positioning structure has a positioning surface located on an opposite side to a container main body side where the container main body is located, across the valve and extends in a direction intersecting with a center axis of the ink outlet.Type: GrantFiled: April 23, 2021Date of Patent: January 3, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Tadahiro Mizutani, Taku Ishizawa, Noriyuki Fukasawa, Naomi Kimura, Shoma Kudo, Manabu Akahane
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Patent number: 11465419Abstract: A liquid container includes: a bag that contains a liquid; and a pair of members configured to be reused when the liquid container is reassembled by replacing the bag used. The pair of members are fixed to each other by one or more swaging pins.Type: GrantFiled: April 2, 2021Date of Patent: October 11, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Noriyuki Fukasawa, Hiroyuki Kawate, Taku Ishizawa, Takumi Nagashima
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Patent number: 11440329Abstract: A liquid ejecting system includes a specific liquid ejecting apparatus having a first identifier indicative of coverage by a specific service plan, and a specific liquid container having a second identifier indicative of coverage by the specific service plan. The specific liquid ejecting apparatus includes an acquisition section that acquires the second identifier, and a determination section that compares the first identifier with the acquired second identifier and determines whether the specific liquid container is usable for the specific liquid ejecting apparatus.Type: GrantFiled: September 9, 2020Date of Patent: September 13, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Taku Ishizawa, Shuichi Koganehira
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Patent number: 11370224Abstract: A liquid storage container includes: a housing including a case having a case opening, and a lid that closes the case opening; and a sheet that holds the lid and the case together, the sheet extending over lid exterior faces and case exterior faces and being disposed so as to surround the outer circumference of the housing.Type: GrantFiled: January 27, 2021Date of Patent: June 28, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Noriyuki Fukasawa, Taku Ishizawa, Tadahiro Mizutani, Mao Otashiro
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Patent number: 11318748Abstract: A liquid supply system includes a carriage, a plurality of tanks mounted on the carriage, and a plurality of liquid containers for filling a corresponding tank of the plurality of tanks with liquid. The plurality of tanks include a first tank and a second tank in which liquid receiving sections are arranged adjacent to each other in an arrangement direction in the carriage, the plurality of liquid containers include a first liquid container for filling the first tank with the liquid and a second liquid container for filling the second tank with the liquid, and the first liquid container has a portion that, when the first liquid container is set to a first tank filling posture, interferes with a disposition region of the second liquid container when the second liquid container is set to a second tank filling posture.Type: GrantFiled: June 26, 2020Date of Patent: May 3, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Tadahiro Mizutani, Taku Ishizawa
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Patent number: 11305549Abstract: A container stores a fluid for use in an ink jet printer. The container includes: a casing that defines a storage space for storing the fluid, and has an opening communicating with the storage space; a film that covers the opening and seals the storage space; and a film attachment section that fixes the film to the casing. The casing includes a first surface that surrounds a periphery of the opening, and faces the film, and a second surface that surrounds the opening at a position farther from the opening than the first surface, has an angle intersecting the first surface, and faces the film, and the film attachment section is provided on the second surface.Type: GrantFiled: July 30, 2020Date of Patent: April 19, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Taku Ishizawa, Tadahiro Mizutani, Takuma Ozawa
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Patent number: 11298947Abstract: An ink container includes: a container body that contains ink; and an ink outlet forming portion that has an ink outlet. The container body includes a first connection portion provided around an opening. The ink outlet forming portion includes a second connection portion connectable to the first connection portion. The first connection portion includes a first screw forming portion provided on an outer surface. The second connection portion includes a second screw forming portion provided on an inner surface and configured to be brought into thread engagement with the first screw forming portion. The container body and the ink outlet forming portion include a stopper located inside an outer circumference of the second connection portion in a radial direction, the center of which is a center axis of the first connection portion and the second connection portion.Type: GrantFiled: August 28, 2020Date of Patent: April 12, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Yoshiaki Shimizu, Tadahiro Mizutani, Taku Ishizawa
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Patent number: 11298952Abstract: The printing system includes a liquid supply container that stores a liquid; a printing device that receives a liquid supplied from the liquid supply container and performs printing; an imaging device that acquires image information including at least a part of the liquid supply container; an acquisition section that acquires reference information; a determination section that collates the image information with the reference information and determines whether or not the liquid is allowed to be supplied according to a collation result; and a control section that controls the printing device according to the determination.Type: GrantFiled: October 29, 2020Date of Patent: April 12, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Tadahiro Mizutani, Taku Ishizawa, Ryoichi Tanaka
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Patent number: 11269574Abstract: To provide a technique in which an image forming process is not restricted even when consumption information cannot be transmitted to the outside such as a server in an image forming apparatus. The image forming apparatus includes an operation control portion for executing a plurality of functions for forming an image; a memory that stores availability information of the plurality of functions according to a specified contract that defines usage conditions of the image forming apparatus; and a determination portion that determines, when a usage request for at least one of the plurality of functions is received, with reference to the availability information, whether or not the at least one of the plurality of functions corresponding to the usage request received is configured to be used, in which the operation control portion controls operation of the image forming apparatus in accordance with a determination result of the determination portion.Type: GrantFiled: February 24, 2021Date of Patent: March 8, 2022Assignee: SEIKO EPSON CORPORATIONInventors: Taku Ishizawa, Tadahiro Mizutani
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Publication number: 20220055369Abstract: Convenience of an ink bottle and a bottle set is improved. An ink bottle includes: a container portion that contains ink; a guiding portion that is formed in one end portion of the container portion, and includes an outflow port from which the ink in the container portion flow out; and a cover that covers at least an end portion of the container portion on the opposite side of the guiding portion.Type: ApplicationFiled: November 2, 2021Publication date: February 24, 2022Applicant: SEIKO EPSON CORPORATIONInventors: Taku ISHIZAWA, Tadahiro MIZUTANI, Ryoichi TANAKA, Manabu AKAHANE, Koichi TOBA, Takumi NAGASHIMA, Yoshiaki SHIMIZU, Tadashi WATANABE, Noriyuki FUKASAWA
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Patent number: 11192380Abstract: Convenience of an ink bottle and a bottle set is improved. An ink bottle includes: a container portion that contains ink; a guiding portion that is formed in one end portion of the container portion, and includes an outflow port from which the ink in the container portion flow out; and a cover that covers at least an end portion of the container portion on the opposite side of the guiding portion.Type: GrantFiled: December 27, 2019Date of Patent: December 7, 2021Assignee: SEIKO EPSON CORPORATIONInventors: Taku Ishizawa, Tadahiro Mizutani, Ryoichi Tanaka, Manabu Akahane, Koichi Toba, Takumi Nagashima, Yoshiaki Shimizu, Tadashi Watanabe, Noriyuki Fukasawa
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Patent number: 11141985Abstract: A liquid supply unit includes an outer shell, a liquid supply portion that is arranged in the outer shell and can supply a liquid to the liquid ejection apparatus, and an engaged structure including an engaged portion that can engage with the engagement portion of the liquid ejection apparatus, and a first opening that is formed in the outer shell and through which the engagement structure can be inserted. The engaged portion is arranged further inward than an outer surface of the outer shell.Type: GrantFiled: December 12, 2019Date of Patent: October 12, 2021Assignee: SEIKO EPSON CORPORATIONInventors: Taku Ishizawa, Satoshi Shinada, Yoshiaki Shimizu, Noriyuki Fukasawa
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Patent number: D979418Type: GrantFiled: December 24, 2019Date of Patent: February 28, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Tomoyuki Higuchi, Tadahiro Mizutani, Taku Ishizawa, Yoshiaki Shimizu
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Patent number: D988398Type: GrantFiled: July 31, 2020Date of Patent: June 6, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Noriyuki Fukasawa, Taku Ishizawa, Tadashi Watanabe, Ryoichi Tanaka, Tadahiro Mizutani