Patents by Inventor Masatoshi Ohira
Masatoshi Ohira 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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Patent number: 11840090Abstract: A liquid ejection head includes: a casing, which is hollow, and has an opening at one end; a lid member, which is fixed to an end portion of the opening of the casing; and a member arranged inside the casing. The lid member has a liquid supply port. The member has a first liquid guide groove, and the casing has a second liquid guide groove. The second liquid guide groove extends from the end portion of the opening to a side opposite to the opening in the side wall inner surface of the casing, the first liquid guide groove extends to a side surface of the member which is in contact with or close to the side wall inner surface of the casing, and the first liquid guide groove and the second liquid guide groove are located so as to allow fluid communication therebetween.Type: GrantFiled: March 29, 2022Date of Patent: December 12, 2023Assignee: Canon Kabushiki KaishaInventors: Shigeki Fukui, Isamu Yoneda, Hiroki Tajima, Masatoshi Ohira
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Patent number: 11833833Abstract: A liquid container includes a container body including a storage chamber configured to store a liquid and a supply port configured to supply the liquid to the storage chamber, and a plug member to seal the supply port, the plug member including a body portion located outside the storage chamber and the supply port and a plug portion located inside the storage chamber and the supply port. The plug portion has a press-fitted portion to be press-fitted into the supply port and a leading end portion exposed to the storage chamber, an axial line of the plug portion is perpendicular to an opening surface of the supply port, and a leading end surface of the leading end portion is an inclined surface inclined with respect to a surface of the plug portion.Type: GrantFiled: April 8, 2022Date of Patent: December 5, 2023Assignee: Canon Kabushiki KaishaInventors: Takuro Inaba, Masatoshi Ohira
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Publication number: 20230321993Abstract: An object is to provide a liquid storage container capable of reducing the possibility of dispersion of liquid in a case where a lid member is detached. The lid member has a covering portion capable of covering the opening and a knob portion protruding from the covering portion in a direction in which the knob portion becomes more distant from the opening. The covering portion can deform into a convex shape in a case where the knob portion is pushed toward the inside from the outside of the opening in a state where the lid member is attached to the opening and can deform from the convex shape into a concave shape in a case where the knob portion is pulled up toward the outside from the inside of the opening in a state where the covering portion has deformed into the convex shape.Type: ApplicationFiled: March 9, 2023Publication date: October 12, 2023Inventors: MASATOSHI OHIRA, SHINICHI MIYAUCHI
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Patent number: 11623453Abstract: To provide a liquid storage container equipped with a plug member that can prevent leakage of a liquid from the liquid storage container and can be opened without causing scatter of the liquid, and a liquid ejection apparatus equipped with the liquid storage container. For the purpose, at least one of a connection part of the convex part with the cover part and an apical part of the convex part most apart from the connection part is provided offset from the centroid of the cover part, seen from a direction orthogonal to an opening surface of a supply port in a state that the plug member is mounted on a supply port of the liquid storage container.Type: GrantFiled: November 1, 2021Date of Patent: April 11, 2023Assignee: Canon Kabushiki KaishaInventors: Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Takeho Miyashita, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
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Publication number: 20220348020Abstract: A liquid housing container includes a container main body including a housing chamber for housing liquid therein; and a feeding port for feeding the liquid to the housing chamber, and a plug member that is attachable to and detachable from the container main body and seals the feeding port, the plug member including a cover portion for covering the feeding port from an outer side of the container main body in a mounting state, in which the plug member is mounted to the container main body, and a protruded portion that protrudes from the cover portion to an inner side of the feeding port. The protruded portion includes a liquid holding portion that is provided at a position including a distal end surface of the protruded portion and is capable of holding the liquid by capillary force.Type: ApplicationFiled: April 15, 2022Publication date: November 3, 2022Inventors: Mika Ogura, Masatoshi Ohira
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Publication number: 20220339945Abstract: A liquid container includes a container body including a storage chamber configured to store a liquid and a supply port configured to supply the liquid to the storage chamber, and a plug member to seal the supply port, the plug member including a body portion located outside the storage chamber and the supply port and a plug portion located inside the storage chamber and the supply port. The plug portion has a press-fitted portion to be press-fitted into the supply port and a leading end portion exposed to the storage chamber, an axial line of the plug portion is perpendicular to an opening surface of the supply port, and a leading end surface of the leading end portion is an inclined surface inclined with respect to a surface of the plug portion.Type: ApplicationFiled: April 8, 2022Publication date: October 27, 2022Inventors: Takuro Inaba, Masatoshi Ohira
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Publication number: 20220314629Abstract: A liquid ejection head includes: a casing, which is hollow, and has an opening at one end; a lid member, which is fixed to an end portion of the opening of the casing; and a member arranged inside the casing. The lid member has a liquid supply port. The member has a first liquid guide groove, and the casing has a second liquid guide groove. The second liquid guide groove extends from the end portion of the opening to a side opposite to the opening in the side wall inner surface of the casing, the first liquid guide groove extends to a side surface of the member which is in contact with or close to the side wall inner surface of the casing, and the first liquid guide groove and the second liquid guide groove are located so as to allow fluid communication therebetween.Type: ApplicationFiled: March 29, 2022Publication date: October 6, 2022Inventors: Shigeki Fukui, Isamu Yoneda, Hiroki Tajima, Masatoshi Ohira
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Publication number: 20220169025Abstract: A method of welding a first member and a second member together includes preparing the first member and the second member, bringing the first member and the second member into contact to form a space between the first member and the second member, and bringing a welding horn into contact with the first member or the second member. The method of welding further includes performing a vibration process to vibrate the welding horn to weld the first member and the second member together by frictional heat, and performing a fluid-flow process to make fluid flow through the space. The fluid-flow process is performed during the vibration process.Type: ApplicationFiled: November 17, 2021Publication date: June 2, 2022Inventors: Masatoshi Ohira, Masato Takikawa, Kenji Fujii, Naoki Nakajo
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Publication number: 20220048295Abstract: To provide a liquid storage container equipped with a plug member that can prevent leakage of a liquid from the liquid storage container and can be opened without causing scatter of the liquid, and a liquid ejection apparatus equipped with the liquid storage container. For the purpose, at least one of a connection part of the convex part with the cover part and an apical part of the convex part most apart from the connection part is provided offset from the centroid of the cover part, seen from a direction orthogonal to an opening surface of a supply port in a state that the plug member is mounted on a supply port of the liquid storage container.Type: ApplicationFiled: November 1, 2021Publication date: February 17, 2022Inventors: Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Takeho Miyashita, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
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Patent number: 11192383Abstract: To provide a liquid storage container equipped with a plug member that can prevent leakage of a liquid from the liquid storage container and can be opened without causing scatter of the liquid, and a liquid ejection apparatus equipped with the liquid storage container. For the purpose, at least one of a connection part of the convex part with the cover part and an apical part of the convex part most apart from the connection part is provided offset from the centroid of the cover part, seen from a direction orthogonal to an opening surface of a supply port in a state that the plug member is mounted on a supply port of the liquid storage container.Type: GrantFiled: March 4, 2020Date of Patent: December 7, 2021Assignee: Canon Kabushiki KaishaInventors: Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Takeho Miyashita, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
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Patent number: 10843474Abstract: A liquid container unit includes: a liquid container including: a plurality of liquid storage portions; and a plurality of injection ports which are provided to the respective plurality of liquid storage portions, and are configured to enable injection of liquid into the plurality of liquid storage portions; and an injection port cover which is provided to the liquid container so as to be rotatable and is configured to cover the plurality of injection ports so as to be openable and closable, the injection port cover including a plurality of stopper members configured to close the plurality of injection ports when the injection port cover is closed.Type: GrantFiled: July 17, 2019Date of Patent: November 24, 2020Assignee: Canon Kabushiki KaishaInventors: Atsushi Arai, Tomoki Yamamuro, Tatsuaki Orihara, Takeho Miyashita, Kazuya Yoshii, Norihiro Ikebe, Akira Shiba, Ryo Shimamura, Masatoshi Ohira, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
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Publication number: 20200198359Abstract: To provide a liquid storage container equipped with a plug member that can prevent leakage of a liquid from the liquid storage container and can be opened without causing scatter of the liquid, and a liquid ejection apparatus equipped with the liquid storage container. For the purpose, at least one of a connection part of the convex part with the cover part and an apical part of the convex part most apart from the connection part is provided offset from the centroid of the cover part, seen from a direction orthogonal to an opening surface of a supply port in a state that the plug member is mounted on a supply port of the liquid storage container.Type: ApplicationFiled: March 4, 2020Publication date: June 25, 2020Inventors: Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Takeho Miyashita, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
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Patent number: 10618300Abstract: To provide a liquid storage container equipped with a plug member that can prevent leakage of a liquid from the liquid storage container and can be opened without causing scatter of the liquid, and a liquid ejection apparatus equipped with the liquid storage container. For the purpose, at least one of a connection part of the convex part with the cover part and an apical part of the convex part most apart from the connection part is provided offset from the centroid of the cover part, seen from a direction orthogonal to an opening surface of a supply port in a state that the plug member is mounted on a supply port of the liquid storage container.Type: GrantFiled: August 30, 2018Date of Patent: April 14, 2020Assignee: Canon Kabushiki KaishaInventors: Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Takeho Miyashita, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
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Patent number: 10611162Abstract: There are provided a liquid container including a plug member which prevents leakage of a liquid from the liquid container and can be opened without scattering the liquid and a liquid ejection apparatus including the liquid container. For that purpose, a projecting portion in the plug member is provided below a center part of the plug member in a gravity direction in an attitude at the time of use of the liquid ejection apparatus.Type: GrantFiled: September 24, 2018Date of Patent: April 7, 2020Assignee: Canon Kabushiki KaishaInventors: Norihiro Ikebe, Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Takeho Miyashita, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
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Patent number: 10538092Abstract: A liquid supplying mechanism includes: a tank including a liquid storage section configured to store a liquid, and a liquid injection port configured to inject the liquid into the liquid storage section; and a bottle configured to replenish the liquid into the tank. The bottle includes: a bottle section configured to store the liquid; and a protruding section, which protrudes from the bottle section, and is insertable into the liquid injection port so as to inject, into the liquid storage section, the liquid stored in the bottle section. The liquid injection port includes: a protruding section insertion portion into which the protruding section of the bottle is insertable; and a protruding section fixing portion, which is engageable with the protruding section of the bottle, to thereby be capable of fixing the bottle to the tank.Type: GrantFiled: July 23, 2019Date of Patent: January 21, 2020Assignee: Canon Kabushiki KaishaInventors: Takeho Miyashita, Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
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Publication number: 20190344577Abstract: A liquid supplying mechanism includes: a tank including a liquid storage section configured to store a liquid, and a liquid injection port configured to inject the liquid into the liquid storage section; and a bottle configured to replenish the liquid into the tank. The bottle includes: a bottle section configured to store the liquid; and a protruding section, which protrudes from the bottle section, and is insertable into the liquid injection port so as to inject, into the liquid storage section, the liquid stored in the bottle section. The liquid injection port includes: a protruding section insertion portion into which the protruding section of the bottle is insertable; and a protruding section fixing portion, which is engageable with the protruding section of the bottle, to thereby be capable of fixing the bottle to the tank.Type: ApplicationFiled: July 23, 2019Publication date: November 14, 2019Inventors: Takeho Miyashita, Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
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Publication number: 20190337296Abstract: A liquid container unit includes: a liquid container including: a plurality of liquid storage portions; and a plurality of injection ports which are provided to the respective plurality of liquid storage portions, and are configured to enable injection of liquid into the plurality of liquid storage portions; and an injection port cover which is provided to the liquid container so as to be rotatable and is configured to cover the plurality of injection ports so as to be openable and closable, the injection port cover including a plurality of stopper members configured to close the plurality of injection ports when the injection port cover is closed.Type: ApplicationFiled: July 17, 2019Publication date: November 7, 2019Inventors: Atsushi Arai, Tomoki Yamamuro, Tatsuaki Orihara, Takeho Miyashita, Kazuya Yoshii, Norihiro Ikebe, Akira Shiba, Ryo Shimamura, Masatoshi Ohira, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
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Patent number: 10427412Abstract: An object is to provide a liquid ejecting apparatus that enables a liquid storage container to be properly and easily refilled with a liquid from a liquid refilling container without causing color mixture in the liquid storage container. The liquid ejecting apparatus includes liquid storage containers each configured to feed the liquid to a liquid ejecting portion and liquid refilling containers each configured to refill the liquid storage container with the liquid. A first fitting unit is provided around a liquid injection port in each of the liquid storage containers. A second fitting unit is provided around a liquid pour-out port in each of the liquid refilling containers. The second fitting unit is fitted to the first fitting unit to enable the liquid to be delivered from the liquid pour-out port to the liquid injection port.Type: GrantFiled: May 9, 2017Date of Patent: October 1, 2019Assignee: Canon Kabushiki KaishaInventors: Kyoshiro Okude, Masateru Komori, Masato Koshimizu, Tsuyoshi Saeki, Yukimichi Kimura, Masahiro Kawanishi, Masaaki Matsuura, Katsuyuki Yokoi, Akira Shiba, Ryo Shimamura, Kazuya Yoshii, Norihiro Ikebe, Takeho Miyashita, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
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Patent number: 10399347Abstract: A liquid supplying mechanism includes: a tank including a liquid storage section configured to store a liquid, and a liquid injection port configured to inject the liquid into the liquid storage section; and a bottle configured to replenish the liquid into the tank. The bottle includes: a bottle section configured to store the liquid; and a protruding section, which protrudes from the bottle section, and is insertable into the liquid injection port so as to inject, into the liquid storage section, the liquid stored in the bottle section. The liquid injection port includes: a protruding section insertion portion into which the protruding section of the bottle is insertable; and a protruding section fixing portion, which is engageable with the protruding section of the bottle, to thereby be capable of fixing the bottle to the tank.Type: GrantFiled: June 16, 2017Date of Patent: September 3, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Takeho Miyashita, Ryo Shimamura, Akira Shiba, Kazuya Yoshii, Norihiro Ikebe, Tomoki Yamamuro, Atsushi Arai, Masatoshi Ohira, Tatsuaki Orihara, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya
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Patent number: 10399346Abstract: A liquid container unit includes: a liquid container including: a plurality of liquid storage portions; and a plurality of injection ports which are provided to the respective plurality of liquid storage portions, and are configured to enable injection of liquid into the plurality of liquid storage portions; and an injection port cover which is provided to the liquid container so as to be rotatable and is configured to cover the plurality of injection ports so as to be openable and closable, the injection port cover including a plurality of stopper members configured to close the plurality of injection ports when the injection port cover is closed.Type: GrantFiled: May 23, 2017Date of Patent: September 3, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Atsushi Arai, Tomoki Yamamuro, Tatsuaki Orihara, Takeho Miyashita, Kazuya Yoshii, Norihiro Ikebe, Akira Shiba, Ryo Shimamura, Masatoshi Ohira, Hirofumi Okuhara, Kazumasa Matsushita, Misato Furuya