Patents by Inventor Junji Yasuda
Junji Yasuda 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: 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: 20120019608Abstract: An optical scanning apparatus capable of properly correcting a main scanning scale factor. Upstream and downstream laser-light detection sensors of the optical scanning apparatus each generate a signal when first or second light beam passes through each of slits formed in the sensors. Based on signals, a scanning time required for each light beam to scan between the sensors is measured. A correction coefficient is decided by a correction value calculation unit based on a difference between wavelengths of the first and second light beams, a scanning time difference is calculated by a comparison unit based on the correction coefficient and scanning times of the light beams, and the downstream laser-light detection sensor is rotated by a sensor rotation drive unit to make the scanning time difference zero, whereby the slits are made parallel to each other.Type: ApplicationFiled: July 20, 2011Publication date: January 26, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Noriyuki CHINO, Katsuhiko TAKANO, Shoji KANEMURA, Junji YASUDA, Kota KIYAMA
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Publication number: 20120012266Abstract: Provided a lignocellulosic biomass saccharification pre-treatment device capable of producing a pretreated material for saccharification. The lignocellulosic biomass saccharification pre-treatment device comprises a separation unit 4 which separates ammonia gas by heating a pretreated material for saccharification obtained from a substrate mixture obtained by mixing lignocellulosic biomass and ammonia water; a first heat recovery unit 25 which recovers heat-of-dissolution generated when ammonia gas is dissolved in water, and the heat supply units 8, 9, 10 which generate heat by using heat-of-dissolution recovered by the first heat recovery unit 25 and supply the heat to the separation unit 4.Type: ApplicationFiled: July 11, 2011Publication date: January 19, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Tsuyoshi Baba, Junji Yasuda
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Publication number: 20100295917Abstract: An image forming apparatus capable of enhancing the accuracy of the scanning position of a laser beam to thereby obtain a more precise image. Optical sensors detect reflected light from a surface of a photosensitive drum. During image formation, the apparatus detects the scanning speed of the laser beam in a main scanning direction based on detection signals from the respective optical sensors in each of divisional sections of an image forming area in the main scanning direction. The apparatus corrects magnification of the image in the main scanning direction, based on results of detection of the scanning speed of the laser beam in the main scanning direction.Type: ApplicationFiled: May 21, 2010Publication date: November 25, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Noriyuki Chino, Yuji Uramoto, Shoji Kanemura, Kota Kiyama, Junji Yasuda, Katsuhiko Takano, Yoshinobu Sekiguchi, Noboru Koumura
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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: 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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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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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: 7082898Abstract: The present invention aims at expanding an operation range for allowing a compression ignition combustion operation. The present invention provides an internal combustion engine of a compression ignition type that is capable of operating with a compression ignition combustion scheme in a given operation range. The ECU of the internal combustion engine detects an operating condition of the internal combustion engine and determines, according to the detected operating condition, which mode is to be used operate the internal combustion engine, a 4-cycle compression ignition mode or a 2-cycle compression ignition mode. The ECU controls the internal compression engine to perform the compression ignition mode determined.Type: GrantFiled: April 6, 2004Date of Patent: August 1, 2006Assignee: Honda Motor Co. Ltd.Inventors: Tohru Kitamura, Tomio Kimura, Shohei Okazaki, Akira Kato, Toshihiro Yamaki, Katsura Okubo, Moriyoshi Awasaka, Junji Yasuda, Yasuhiro Urata, Takashi Kakinuma, Yoshimasa Kaneko
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Publication number: 20040237910Abstract: The present invention aims at expanding an operation range for allowing a compression ignition combustion operation. The present invention provides an internal combustion engine of a compression ignition type that is capable of operating with a compression ignition combustion scheme in a given operation range. The ECU of the internal combustion engine detects an operating condition of the internal combustion engine and determines, according to the detected operating condition, which mode is to be used operate the internal combustion engine, a 4-cycle compression ignition mode or a 2-cycle compression ignition mode. The ECU controls the internal compression engine to perform the compression ignition mode determined.Type: ApplicationFiled: April 6, 2004Publication date: December 2, 2004Inventors: Tohru Kitamura, Tomio Kimura, Shohei Okazaki, Akira Kato, Toshihiro Yamaki, Katsura Okubo, Moriyoshi Awasaka, Junji Yasuda, Yasuhiro Urata, Takashi Kakinuma, Yoshimasa Kaneko
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Patent number: 6817349Abstract: A control system for a compression ignition internal combustion engine is provided which is capable of expanding a region for executing compression ignition, on the low-load side, while positively obtaining a required power output from the engine. The amount of residual combustion gas is determined depending on operating conditions of the engine, and based on the determined amount of residual combustion gas, part of combustion gas is retained in each combustion chamber after combustion. It is judged whether or not supercharging of fresh air should be executed for self-ignition, based on the operating conditions of the engine, and when it is judged that the supercharging should be executed, supercharging of fresh air flowing to the combustion chamber is executed.Type: GrantFiled: July 8, 2003Date of Patent: November 16, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Moriyoshi Awasaka, Takashi Kakinuma, Junji Yasuda, Yasuhiro Urata
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Publication number: 20040118390Abstract: A control system for a compression ignition internal combustion engine is provided which is capable of expanding a region for executing compression ignition, on the low-load side, while positively obtaining a required power output from the engine. The amount of residual combustion gas is determined depending on operating conditions of the engine, and based on the determined amount of residual combustion gas, part of combustion gas is retained in each combustion chamber after combustion. It is judged whether or not supercharging of fresh air should be executed for self-ignition, based on the operating conditions of the engine, and when it is judged that the supercharging should be executed, supercharging of fresh air flowing to the combustion chamber is executed.Type: ApplicationFiled: July 8, 2003Publication date: June 24, 2004Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Moriyoshi Awasaka, Takashi Kakinuma, Junji Yasuda, Yasuhiro Urata
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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: 20030052932Abstract: This specification discloses an ink jet recording head in which discharge energy is imparted from a plurality of discharge energy generating elements formed on an element substrate and ink in an ink flow path is discharged from a nozzle, characterized in that a driving element for driving the discharge energy generating elements and also having the function as a temperature sensor and formed as a member discrete from the element substrate is mounted on the element substrate. The specification also discloses a recording apparatus having signal transmitting means for driving the ink jet recording head.Type: ApplicationFiled: December 30, 1998Publication date: March 20, 2003Inventors: SEIICHIRO KARITA, YUTAKA KOIZUMI, 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