Patents by Inventor Hiroshi Taira
Hiroshi Taira 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: 20210300031Abstract: An inkjet printing apparatus adopting short pulse heating is designed to output a uniform image without unevenness. To this end, in a serial inkjet printing apparatus, a print head is subjected to a short pulse heating treatment before each print scan is carried out. In a case where a print medium is a first print medium, the print head is heated to a first target temperature before carrying out each of the print scans. In a case where the print medium is a second print medium, the print head is heated to a second target temperature lower than the first target temperature before carrying out each of the print scans.Type: ApplicationFiled: March 15, 2021Publication date: September 30, 2021Inventors: Hiroshi Kawafuji, Kazuhiko Sato, Kazuo Suzuki, Takeshi Murase, Hiroshi Taira, Tomoki Yamamuro, Sae Mogi, Masaki Nitta
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Patent number: 11077669Abstract: A liquid cartridge includes: a cartridge casing having a liquid storage chamber; a first wall; a second wall; and an air communication passage. The first wall is positioned upward relative to the liquid storage chamber. The second wall is positioned upward relative to the first wall. The air communication passage has a first communication hole in communication with the liquid storage chamber and a communication opening open to an atmosphere. The air communication passage includes: an air chamber defined by the first wall and the second wall and in communication with the liquid storage chamber through the first communication hole; a second communication hole formed in the second wall; and a labyrinth path. The labyrinth path is positioned upward relative to the air chamber, and has one end in communication with the second communication hole and another end in communication with the communication opening.Type: GrantFiled: November 13, 2019Date of Patent: August 3, 2021Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tetsuro Kobayashi, Hiroaki Takahashi, Takahiro Miyao, Fumio Nakazawa, Naoya Okazaki, Akihito Ono, Kosuke Nukui, Hiroshi Taira, Toyonori Sasaki
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Patent number: 11077670Abstract: According to an embodiment of this invention, an apparatus comprises: a detachable inktank containing ink; a subtank containing the ink supplied from the inktank; a printhead configured to discharge the ink supplied from the subtank; an ink supply path connecting the subtank to the printhead; a valve arranged on the ink supply path; a supply unit configured to supply the ink from the inktank to the subtank by repeatedly opening and closing the valve; a suction unit configured to suck the ink from the printhead; and a control unit configured to control, when the inktank is attached, the supply unit to operate for a predetermined number of times to supply the ink from the inktank to the subtank, and to subsequently control the suction unit to operate to supply the ink from the subtank to the printhead.Type: GrantFiled: January 22, 2019Date of Patent: August 3, 2021Assignee: Canon Kabushiki KaishaInventors: Toshimitsu Danzuka, Naoaki Wada, Kazuki Narumi, Tomoki Yamamuro, Hiroshi Taira, Akiko Aichi, Noboru Kunimine, Taku Yokozawa, Kazuo Suzuki, Kazuhiko Sato, Masataka Kato, Shin Genta, Hiroto Kango
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Publication number: 20210046764Abstract: A printing apparatus includes an ink tank that stores ink, a supply tube that supplies the ink from the ink tank, and a printing head that includes therein a pressure chamber arranged with an ejection port to eject the ink and performs reciprocal moving. The printing head includes a first liquid chamber that includes a connection portion with the supply channel, a second liquid chamber that communicates with the first liquid chamber by way of the pressure chamber, and a volume variable unit that changes an inner volume of the second liquid chamber.Type: ApplicationFiled: June 30, 2020Publication date: February 18, 2021Inventors: Sae Mogi, Kazuo Suzuki, Shin Genta, Hiroshi Taira
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Patent number: 10882346Abstract: An ink jet recording apparatus of a line-recording-head type includes one or more recording heads using the same ink and performs recording of an image by conveying a recording medium using multiple passes through a recording region of the recording head while the recording medium is repeatedly conveyed backward and forward to speed up recording and improve image quality. A recording head is controlled to provide that an amount of ink applied to a recording medium in a case where the recording medium is conveyed at a first speed is smaller than an amount of ink applied to the recording medium in a case where the recording medium is conveyed at a second speed higher than the first speed in both of a case where the recording medium is accelerated and a case where the recording medium is decelerated.Type: GrantFiled: September 27, 2019Date of Patent: January 5, 2021Assignee: Canon Kabushiki KaishaInventors: Hiroshi Taira, Kazuhiko Sato, Kazuo Suzuki, Mitsutoshi Nagamura, Satoshi Azuma, Tomoki Yamamuro, Shingo Nishioka
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Patent number: 10752007Abstract: A supply apparatus includes: a tank in which a liquid supply section is formed, the liquid supply section having a liquid storage chamber, an inlet for supplying liquid to the liquid storage chamber, and a liquid flow path, the liquid storage chamber being demarcated by first surfaces facing in a first direction, a second surface joining the first surfaces, and a third surface separated from the second surface in a second direction orthogonal to the first direction; a holding member holding a part of the tank from one side in the second direction; a coupling member having a coupling section coupled to the liquid supply section of the tank from another side in the second direction to allow flow of the liquid; and a casing supporting at least one of the holding member and the coupling member.Type: GrantFiled: April 12, 2019Date of Patent: August 25, 2020Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yoshinori Osakabe, Masako Kawagoe, Taichi Shirono, Kenichi Hirata, Hiroshi Taira
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Publication number: 20200180318Abstract: A liquid cartridge includes: a cartridge casing having a liquid storage chamber; a first wall; a second wall; and an air communication passage. The first wall is positioned upward relative to the liquid storage chamber. The second wall is positioned upward relative to the first wall. The air communication passage has a first communication hole in communication with the liquid storage chamber and a communication opening open to an atmosphere. The air communication passage includes: an air chamber defined by the first wall and the second wall and in communication with the liquid storage chamber through the first communication hole; a second communication hole formed in the second wall; and a labyrinth path. The labyrinth path is positioned upward relative to the air chamber, and has one end in communication with the second communication hole and another end in communication with the communication opening.Type: ApplicationFiled: November 13, 2019Publication date: June 11, 2020Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tetsuro KOBAYASHI, Hiroaki TAKAHASHI, Takahiro MIYAO, Fumio NAKAZAWA, Naoya OKAZAKI, Akihito ONO, Kosuke NUKUI, Hiroshi TAIRA, Toyonori SASAKI
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Publication number: 20200114666Abstract: An ink jet recording apparatus of a line-recording-head type includes one or more recording heads using the same ink and performs recording of an image by conveying a recording medium using multiple passes through a recording region of the recording head while the recording medium is repeatedly conveyed backward and forward to speed up recording and improve image quality. A recording head is controlled to provide that an amount of ink applied to a recording medium in a case where the recording medium is conveyed at a first speed is smaller than an amount of ink applied to the recording medium in a case where the recording medium is conveyed at a second speed higher than the first speed in both of a case where the recording medium is accelerated and a case where the recording medium is decelerated.Type: ApplicationFiled: September 27, 2019Publication date: April 16, 2020Inventors: Hiroshi Taira, Kazuhiko Sato, Kazuo Suzuki, Mitsutoshi Nagamura, Satoshi Azuma, Tomoki Yamamuro, Shingo Nishioka
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Patent number: 10611156Abstract: An inkjet recording apparatus according to the present disclosure executes a first wiping operation in a case where the count value counted by the count unit is higher than a first threshold value while the recording operation is being performed and execute a second wiping operation when the recording operation completes in a case where the count value counted by the count unit is higher than a second threshold value. The inkjet recording apparatus also executes the second wiping operation when the first wiping operation has been performed while the recording operation is being performed.Type: GrantFiled: June 18, 2018Date of Patent: April 7, 2020Assignee: CANON KABUSHIKI KAISHAInventors: Hiroshi Taira, Toshimitsu Danzuka, Taku Yokozawa, Noboru Kunimine, Akiko Aichi, Kazuki Narumi, Tomoki Yamamuro, Kazuhiko Sato, Kazuo Suzuki
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Patent number: 10493765Abstract: A liquid cartridge includes: a cartridge casing having a liquid storage chamber; a first wall; a second wall; and an air communication passage. The first wall is positioned upward relative to the liquid storage chamber. The second wall is positioned upward relative to the first wall. The air communication passage has a first communication hole in communication with the liquid storage chamber and a communication opening open to an atmosphere. The air communication passage includes: an air chamber defined by the first wall and the second wall and in communication with the liquid storage chamber through the first communication hole; a second communication hole formed in the second wall; and a labyrinth path. The labyrinth path is positioned upward relative to the air chamber, and has one end in communication with the second communication hole and another end in communication with the communication opening.Type: GrantFiled: July 31, 2017Date of Patent: December 3, 2019Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tetsuro Kobayashi, Hiroaki Takahashi, Takahiro Miyao, Fumio Nakazawa, Naoya Okazaki, Akihito Ono, Kosuke Nukui, Hiroshi Taira, Toyonori Sasaki
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Publication number: 20190299623Abstract: A supply apparatus includes: a tank in which a liquid supply section is formed, the liquid supply section having a liquid storage chamber, an inlet for supplying liquid to the liquid storage chamber, and a liquid flow path, the liquid storage chamber being demarcated by first surfaces facing in a first direction, a second surface joining the first surfaces, and a third surface separated from the second surface in a second direction orthogonal to the first direction; a holding member holding a part of the tank from one side in the second direction; a coupling member having a coupling section coupled to the liquid supply section of the tank from another side in the second direction to allow flow of the liquid; and a casing supporting at least one of the holding member and the coupling member.Type: ApplicationFiled: April 12, 2019Publication date: October 3, 2019Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yoshinori OSAKABE, Masako KAWAGOE, Taichi SHIRONO, Kenichi HIRATA, Hiroshi TAIRA
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Publication number: 20190232671Abstract: According to an embodiment of this invention, an apparatus comprises: a detachable inktank containing ink; a subtank containing the ink supplied from the inktank; a printhead configured to discharge the ink supplied from the subtank; an ink supply path connecting the subtank to the printhead; a valve arranged on the ink supply path; a supply unit configured to supply the ink from the inktank to the subtank by repeatedly opening and closing the valve; a suction unit configured to suck the ink from the printhead; and a control unit configured to control, when the inktank is attached, the supply unit to operate for a predetermined number of times to supply the ink from the inktank to the subtank, and to subsequently control the suction unit to operate to supply the ink from the subtank to the printhead.Type: ApplicationFiled: January 22, 2019Publication date: August 1, 2019Inventors: Toshimitsu Danzuka, Naoaki Wada, Kazuki Narumi, Tomoki Yamamuro, Hiroshi Taira, Akiko Aichi, Noboru Kunimine, Taku Yokozawa, Kazuo Suzuki, Kazuhiko Sato, Masataka Kato, Shin Genta, Hiroto Kango
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Patent number: 10259228Abstract: A supply apparatus includes: a tank in which a liquid supply section is formed, the liquid supply section having a liquid storage chamber, an inlet for supplying liquid to the liquid storage chamber, and a liquid flow path, the liquid storage chamber being demarcated by first surfaces facing in a first direction, a second surface joining the first surfaces, and a third surface separated from the second surface in a second direction orthogonal to the first direction; a holding member holding a part of the tank from one side in the second direction; a coupling member having a coupling section coupled to the liquid supply section of the tank from another side in the second direction to allow flow of the liquid; and a casing supporting at least one of the holding member and the coupling member.Type: GrantFiled: June 22, 2017Date of Patent: April 16, 2019Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yoshinori Osakabe, Masako Kawagoe, Taichi Shirono, Kenichi Hirata, Hiroshi Taira
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Publication number: 20190030910Abstract: An inkjet recording apparatus includes a tank, a pivot member and a first surface. The tank has a storage chamber configured to store a liquid therein. The pivot member is disposed in the storage chamber. The pivot member is configured to pivotally move about an axis extending in an axial direction in a case where a level of a liquid surface of the liquid becomes equal to a predetermined liquid level. The pivot member includes a float and a first protrusion. The float has a specific gravity smaller than that of the liquid. The first protrusion protrudes toward the first surface. The first protrusion and the first surface provide a gap therebetween. The first protrusion is at a position in contact with the liquid in a state where the level of the liquid surface of the liquid is at the predetermined liquid level.Type: ApplicationFiled: July 30, 2018Publication date: January 31, 2019Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yuma TANABE, Akinari ISHIBE, Masatake SATO, Hiroshi TAIRA
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Publication number: 20180370239Abstract: An inkjet recording apparatus according to the present disclosure executes a first wiping operation in a case where the count value counted by the count unit is higher than a first threshold value while the recording operation is being performed and execute a second wiping operation when the recording operation completes in a case where the count value counted by the count unit is higher than a second threshold value. The inkjet recording apparatus also executes the second wiping operation when the first wiping operation has been performed while the recording operation is being performed.Type: ApplicationFiled: June 18, 2018Publication date: December 27, 2018Inventors: Hiroshi Taira, Toshimitsu Danzuka, Taku Yokozawa, Noboru Kunimine, Akiko Aichi, Kazuki Narumi, Tomoki Yamamuro, Kazuhiko Sato, Kazuo Suzuki
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Publication number: 20180272741Abstract: A liquid cartridge includes: a cartridge casing having a liquid storage chamber; a first wall; a second wall; and an air communication passage. The first wall is positioned upward relative to the liquid storage chamber. The second wall is positioned upward relative to the first wall. The air communication passage has a first communication hole in communication with the liquid storage chamber and a communication opening open to an atmosphere. The air communication passage includes: an air chamber defined by the first wall and the second wall and in communication with the liquid storage chamber through the first communication hole; a second communication hole formed in the second wall; and a labyrinth path. The labyrinth path is positioned upward relative to the air chamber, and has one end in communication with the second communication hole and another end in communication with the communication opening.Type: ApplicationFiled: July 31, 2017Publication date: September 27, 2018Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Tetsuro KOBAYASHI, Hiroaki TAKAHASHI, Takahiro MIYAO, Fumio NAKAZAWA, Naoya OKAZAKI, Akihito ONO, Kosuke NUKUI, Hiroshi TAIRA, Toyonori SASAKI
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Patent number: 10022961Abstract: A recording apparatus is capable of executing multiple types of different temperature control. A recording head of the recording apparatus has multiple temperature sensors disposed at different positions from each other in the recording head. Each of the multiple types of different temperature control is performed based on representative temperatures acquired using different combinations of the temperature sensors.Type: GrantFiled: April 24, 2017Date of Patent: July 17, 2018Assignee: Canon Kabushiki KaishaInventors: Taku Yokozawa, Hiroaki Shirakawa, Mitsutoshi Nagamura, Yuhei Oikawa, Yosuke Ishii, Hiroaki Komatsu, Satoshi Azuma, Hiroshi Taira
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Patent number: 9895894Abstract: After printing is performed by driving only some printing elements, the other printing elements are driven so that kogation is deposited on the surface of the other printing elements.Type: GrantFiled: May 17, 2016Date of Patent: February 20, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Hiroshi Taira, Taku Yokozawa, Hiroaki Shirakawa, Mitsutoshi Nagamura, Yuhei Oikawa, Satoshi Azuma, Yosuke Ishii, Hiroaki Komatsu
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Patent number: 9873247Abstract: A driving pulse to be applied is changed when an overlapped level of invert timing of driving pulse is large.Type: GrantFiled: March 8, 2016Date of Patent: January 23, 2018Assignee: Canon Kabushiki KaishaInventors: Yuhei Oikawa, Taku Yokozawa, Hiroaki Shirakawa, Mitsutoshi Nagamura, Hiroshi Taira, Satoshi Azuma, Yosuke Ishii, Hiroaki Komatsu
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Publication number: 20180001649Abstract: A supply apparatus includes: a tank in which a liquid supply section is formed, the liquid supply section having a liquid storage chamber, an inlet for supplying liquid to the liquid storage chamber, and a liquid flow path, the liquid storage chamber being demarcated by first surfaces facing in a first direction, a second surface joining the first surfaces, and a third surface separated from the second surface in a second direction orthogonal to the first direction; a holding member holding a part of the tank from one side in the second direction; a coupling member having a coupling section coupled to the liquid supply section of the tank from another side in the second direction to allow flow of the liquid; and a casing supporting at least one of the holding member and the coupling member.Type: ApplicationFiled: June 22, 2017Publication date: January 4, 2018Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Yoshinori OSAKABE, Masako KAWAGOE, Taichi SHIRONO, Kenichi HIRATA, Hiroshi TAIRA