Patents by Inventor Manabu Sueoka
Manabu Sueoka 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: 20230204947Abstract: A head-mounted display (HMD) includes an electronic viewfinder. An angle selection type transmission element is provided on an optical path of the electronic viewfinder. The angle selection type transmission element is provided at a location facing an eyepoint and includes a plurality of opening portions as a limiter that limits a passage direction of light to a predetermined range. In the angle selection type transmission element, limitation angle range in the passage direction of the light is different in at least two regions and light in a direction other than the eyepoint can be limited or blocked.Type: ApplicationFiled: February 22, 2023Publication date: June 29, 2023Inventors: Yoshihiko KONNO, Nobuyoshi SUZUKI, Manabu SUEOKA, Hirohito KAI, Kiyoshi NITTO
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Publication number: 20220397758Abstract: A head-mounted display (HMD) having a line-of-sight detection function includes angle selection type transmission elements that are disposed in a finder optical path for eyes of a user, respectively, a light projecting unit and a light receiving unit for line-of-sight detection, and is configured to be capable of adjusting a direction of a finder to a detected line-of-sight direction. The angle selection type transmission elements have first to third opening portions with different directions. The first and second opening portions limit a passage direction of light in first and second regions in a finder optical path, respectively. The third opening portion is formed around a line connecting an eye point and the light receiving unit.Type: ApplicationFiled: August 17, 2022Publication date: December 15, 2022Inventors: Yoshihiko Konno, Nobuyoshi Suzuki, Kiyoshi Nitto, Hirohito Kai, Manabu Sueoka
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Patent number: 8857953Abstract: A liquid ejection head includes a piezoelectric block body having a plurality of pressure chambers arranged two-dimensionally to face respective ejection ports, a plurality of air chambers arranged adjacently relative to the plurality of pressure chambers, and a plurality of flow channels arranged along the pressure chambers. The pressure chambers are deformed by expansion and contraction of piezoelectric members disposed between the pressure chambers and the air chambers so as to drive the liquid stored therein to flow toward the ejection ports. A connection flow channel is provided at the ejection port side of the piezoelectric block body so as to make each of the pressure chambers communicate with at least one of the flow channels for partial recirculation of the ink.Type: GrantFiled: December 14, 2012Date of Patent: October 14, 2014Assignee: Canon Kabushiki KaishaInventors: Toshio Suzuki, Shinan Wang, Toru Nakakubo, Manabu Sueoka, Tsunenori Soma, Ryota Kashu
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Patent number: 8529040Abstract: A printhead comprises a first ink chamber having an inlet port, to which ink from an ink supply source is supplied, a second ink chamber, to which the ink from the first ink chamber is supplied, a discharge orifice discharging ink from the second ink chamber, a first outlet port discharging fluid from the first ink chamber, a second outlet port discharging fluid from the second ink chamber, and an air-liquid separation unit which restricts liquid ejection and is provided between the first ink chamber and the first outlet port, or/and between the second ink chamber and the second outlet port. Flow resistance from the inlet port to the first outlet port is smaller than flow resistance from the inlet port to the second outlet port.Type: GrantFiled: November 7, 2008Date of Patent: September 10, 2013Assignee: Canon Kabushiki KaishaInventors: Shinji Yamamoto, Junya Kawase, Manabu Sueoka, Yohji Ara
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Patent number: 8517499Abstract: A temperature rise of a head due to a printing operation with a higher speed and a higher density is suppressed. To realize this, an inkjet printing head is provided in which a plurality of printing element substrates having an ejection opening array consisting of a plurality of ejection openings for ejecting ink are arranged on a support plate in a direction of the ejection opening array. The support plate includes therein a heat pipe and a flow path through which cooling liquid is flowed.Type: GrantFiled: November 25, 2008Date of Patent: August 27, 2013Assignee: Canon Kabushiki KaishaInventors: Katsuhiko Takano, Makoto Shihoh, Shoji Kanemura, Hiroyasu Nomura, Katsumasa Nishikawa, Shigeo Takenaka, Manabu Sueoka, Junji Yasuda, Noriyuki Chino
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Patent number: 8443985Abstract: A deposition of bubbles or foams to an inner wall of a liquid supplying member is prevented, thereby improving ejecting performance of the bubbles or foams. In the liquid supplying member which forms a flow path for supplying a liquid to a liquid discharging apparatus, the inner wall surface has a concave/convex shape in which a mountain portion and a valley portion are repeated at a predetermined spatial frequency. Assuming that an opening diameter of a filter provided for the liquid discharging apparatus is equal to R (?m), one period f (?m)of the spatial frequency lies within a range from R or more to ?{square root over (2)}·R or less and a maximum height Ry (?m) of the mountain portion is equal to ?{square root over (2)}·R/2 or more.Type: GrantFiled: April 19, 2010Date of Patent: May 21, 2013Assignee: Canon Kabushiki KaishaInventors: Kazuhiro Aoyama, Manabu Sueoka, Yoshiyuki Kurita
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Patent number: 8414113Abstract: A discharging device includes a liquid container configured to contain a liquid, a discharge channel configured to discharge a fluid from the liquid container, a float member which is lower in specific gravity than the liquid, is movably arranged in the discharge channel, and move up together with the liquid to come into contact with a float sealing member arranged in the discharge channel, thereby shutting the discharge channel, separating means configured to separate the float member from the float sealing member, suction means configured to discharge the fluid from the liquid container via the discharge channel, and control means configured to operate the separating means when operating the suction means.Type: GrantFiled: October 8, 2008Date of Patent: April 9, 2013Assignee: Canon Kabushiki KaishaInventors: Junya Kawase, Manabu Sueoka, Shinji Yamamoto, Yohji Ara
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Patent number: 8382231Abstract: A print head having high printing reliability, in which temperature unevenness is suppressed even when printing is performed using a print head having an increased length and density of an ejection opening array, can be provided. Specifically, a temperature equalizing member such as a heat pipe and a cooling liquid passage is disposed between a first support substrate and each of second support substrates or is disposed inside the first support substrate. This makes it possible to equalize temperature among the plurality of second support substrates and further equalize temperature among the printing element substrates bonded to these support substrates. In addition, the temperature equalizing member is made close to the printing element substrate, thus making it possible to efficiently equalize temperature.Type: GrantFiled: November 21, 2008Date of Patent: February 26, 2013Assignee: Canon Kabushiki KaishaInventors: Katsuhiko Takano, Manabu Sueoka, Junji Yasuda, Shigeo Takenaka, Katsumasa Nishikawa
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Patent number: 8157356Abstract: There is inexpensively and simply provided a highly reliable printing head including a printing element substrate which is located with high positioning precision and therefore causes no occurrence of ink leak regardless of the printing head having a large printing width. An ink jet printing head comprises a plurality of printing element substrates, in each of which a plurality of ejecting openings, printing elements and an ink supply opening are provided, a support member and an ink supply member. The support member is formed of a first member and a second member that is integral with the first member so as to surround the first member, and the support member and the ink supply member are bonded in such a manner that bonding faces of the first member and the second member, and the second member are not in contact with the opening.Type: GrantFiled: July 8, 2009Date of Patent: April 17, 2012Assignee: Canon Kabushiki KaishaInventors: Akira Yamamoto, Katsuhiko Takano, Junji Yasuda, Manabu Sueoka, Toshiaki Hirosawa
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Publication number: 20100289856Abstract: A printhead comprises a first ink chamber having an inlet port, to which ink from an ink supply source is supplied, a second ink chamber, to which the ink from the first ink chamber is supplied, a discharge orifice discharging ink from the second ink chamber, a first outlet port discharging fluid from the first ink chamber, a second outlet port discharging fluid from the second ink chamber, and an air-liquid separation unit which restricts liquid ejection and is provided at least either or both place between the first ink chamber and the first outlet port, or/and a place between the second ink chamber and the second outlet port, wherein flow resistance from the inlet port to the first outlet port is smaller than flow resistance from the inlet port to the second outlet port.Type: ApplicationFiled: November 7, 2008Publication date: November 18, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Shinji Yamamoto, Junya Kawase, Manabu Sueoka, Yohji Ara
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Publication number: 20100282342Abstract: A deposition of bubbles or foams to an inner wall of a liquid supplying member is prevented, thereby improving ejecting performance of the bubbles or foams. In the liquid supplying member which forms a flow path for supplying a liquid to a liquid discharging apparatus, the inner wall surface has a concave/convex shape in which a mountain portion and a valley portion are repeated at a predetermined spatial frequency. Assuming that an opening diameter of a filter provided for the liquid discharging apparatus is equal to R (?m), one period f (?m) of the spatial frequency lies within a range from R or more to ?{square root over (2)}·R or less and a maximum height Ry (?m) of the mountain portion is equal to ?{square root over (2)}·R/2 or more.Type: ApplicationFiled: April 19, 2010Publication date: November 11, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Kazuhiro Aoyama, Manabu Sueoka, Yoshiyuki Kurita
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Publication number: 20100201759Abstract: A discharging device includes a liquid container configured to contain a liquid, a discharge channel configured to discharge a fluid from the liquid container, a float member which is lower in specific gravity than the liquid, is movably arranged in the discharge channel, and move up together with the liquid to come into contact with a float sealing member arranged in the discharge channel, thereby shutting the discharge channel, separating means configured to separate the float member from the float sealing member, suction means configured to discharge the fluid from the liquid container via the discharge channel, and control means configured to operate the separating means when operating the suction means.Type: ApplicationFiled: October 8, 2008Publication date: August 12, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Junya Kawase, Manabu Sueoka, Shinji Yamamoto, Yohji Ara
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Publication number: 20100013889Abstract: There is inexpensively and simply provided a highly reliable printing head including a printing element substrate which is located with high positioning precision and therefore causes no occurrence of ink leak regardless of the printing head having a large printing width. An ink jet printing head comprising a plurality of printing element substrates in each of which a plurality of ejecting openings, printing elements and an ink supply opening, a support member and an ink supply member wherein the support member is formed of a first member and a second member and is integral with the first member so as to surround the first member and the support member and the ink supply member are bonded in such a manner that bonding faces of the first member and the second member, and the second member are not in contact with the opening.Type: ApplicationFiled: July 8, 2009Publication date: January 21, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Akira Yamamoto, Katsuhiko Takano, Junji Yasuda, Manabu Sueoka, Toshiaki Hirosawa
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Publication number: 20090141062Abstract: A print head having high printing reliability, in which temperature unevenness is suppressed even when printing is performed using a print head having an increased length and density of an ejection opening array can be provided. Specifically, a temperature equalizing member such as a heat pipe and a cooling liquid passage is disposed between a first support substrate and each of second support substrates or is disposed inside the first support substrate. This makes it possible to equalize temperature among the plurality of second support substrates and further equalize temperature among the printing element substrates bonded to these support substrates. In addition, the temperature equalizing member is made close to the printing element substrate, thus making it possible to efficiently equalize temperature.Type: ApplicationFiled: November 21, 2008Publication date: June 4, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Katsuhiko Takano, Manabu Sueoka, Junji Yasuda, Shigeo Takenaka, Katsumasa Nishikawa
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Publication number: 20090141063Abstract: A temperature rise of a head due to a printing operation with a higher speed and a higher density is suppressed. To realize this, an inkjet printing head is provided in which a plurality of printing element substrates having an ejection opening array consisting of a plurality of ejection openings for ejecting ink are arranged on a support plate in a direction of the ejection opening array. The support plate includes therein a heat pipe and a flow path through which cooling liquid is flowed.Type: ApplicationFiled: November 25, 2008Publication date: June 4, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Katsuhiko Takano, Makoto Shihoh, Shoji Kanemura, Hiroyasu Nomura, Katsumasa Nishikawa, Shigeo Takenaka, Manabu Sueoka, Junji Yasuda, Noriyuki Chino
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Patent number: 7533960Abstract: A liquid discharge head comprises: a discharge element substrate including a discharge port for discharging liquid and a discharge energy generating element; an electrical wiring substrate for inputting an electrical signal to the discharge energy generating element; a supporting mechanism for supporting the discharge element substrate and the electrical wiring substrate; an electrical connection portion for electrically connecting the discharge element substrate with the electrical wiring substrate; a sealant coated on the electrical connection portion; and a film-like member coating the electrical connection portion along the shape of the electrical connection portion through the sealant. Thus, the liquid discharge head resultingly includes the electrical connection portion on which the height of the sealant is suppressed and lowered sufficiently so as to prevent a problem that the electrical connection portion is damaged and/or exposed due to its height.Type: GrantFiled: December 7, 2006Date of Patent: May 19, 2009Assignee: Canon Kabushiki KaishaInventors: Junji Yasuda, Katsuhiko Takano, Manabu Sueoka, Shigeo Takenaka, Katsumasa Nishikawa, Kenta Udagawa, Toshiaki Hirosawa
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Publication number: 20070139469Abstract: A liquid discharge head comprises: a discharge element substrate including a discharge port for discharging liquid and a discharge energy generating element; an electrical wiring substrate for inputting an electrical signal to the discharge energy generating element; a supporting mechanism for supporting the discharge element substrate and the electrical wiring substrate; an electrical connection portion for electrically connecting the discharge element substrate with the electrical wiring substrate; a sealant coated on the electrical connection portion; and a film-like member coating the electrical connection portion along the shape of the electrical connection portion through the sealant. Thus, the liquid discharge head resultingly includes the electrical connection portion on which the height of the sealant is suppressed and lowered sufficiently so as to prevent a problem that the electrical connection portion is damaged and/or exposed due to its height.Type: ApplicationFiled: December 7, 2006Publication date: June 21, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Junji Yasuda, Katsuhiko Takano, Manabu Sueoka, Shigeo Takenaka, Katsumasa Nishikawa, Kenta Udagawa, Toshiaki Hirosawa
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Patent number: 6565187Abstract: The present invention provides a liquid ejecting head and a liquid ejecting apparatus which permits downsizing of the liquid ejecting head and cost reduction, and furthermore, provides a liquid ejecting head and a liquid ejecting apparatus which permits size reduction of the liquid ejecting head, improvement of reliability of the electrical mounting section, and cost reduction.Type: GrantFiled: November 13, 2001Date of Patent: May 20, 2003Assignee: Canon Kabushiki KaishaInventors: Seiichiro Karita, Manabu Sueoka, Toru Yamane, Junji Yasuda
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Publication number: 20020060715Abstract: The present invention provides a liquid ejecting head and a liquid ejecting apparatus which permits downsizing of the liquid ejecting head and cost reduction, and furthermore, provides a liquid ejecting head and a liquid ejecting apparatus which permits size reduction of the liquid ejecting head, improvement of reliability of the electrical mounting section, and cost reduction.Type: ApplicationFiled: November 13, 2001Publication date: May 23, 2002Inventors: Seiichiro Karita, Manabu Sueoka, Toru Yamane, Junji Yasuda
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Patent number: 6209988Abstract: An ink jet recording head has a recording element unit including a recording element for generating an energy for jetting an ink and a connecting terminal connected to the recording element, a driving element unit including a driving element for driving the recording element and a connecting terminal connected to the driving element, a pressing force generating mechanism for generating a pressing force for pressing the recording element unit and the driving element unit so that the two connecting terminals are connected, and a pressing force transmission member for transmitting the pressing force to the recording element unit or the driving element unit while coming into contact therewith. An ink jet recording apparatus has the ink jet recording head and a member mounted with the ink jet recording head.Type: GrantFiled: January 14, 1999Date of Patent: April 3, 2001Assignee: Canon Kabushiki KaishaInventors: Manabu Sueoka, Toru Yamane