Patents by Inventor Kenichiro Hashimoto
Kenichiro Hashimoto 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: 11969830Abstract: An aluminum alloy brazing sheet including a core material, a sacrificial material provided on one surface of the core material, a brazing filler material provided on the other surface side of the core material, and an intermediate layer provided between the core material and the brazing filler material. The core material contains Si: 0.30 to 1.00 mass %, Mn: 0.50 to 2.00 mass %, Cu: 0.60 to 1.20 mass %, Mg: 0.05 to 0.80 mass %, and Al. The sacrificial material contains Si: 0.10 to 1.20 mass %, Zn: 2.00 to 7.00 mass %, Mn: 0.40 mass % or less, and Al. The intermediate layer contains Si: 0.05 to 1.20 mass %, Mn: 0.50 to 2.00 mass %, Cu: 0.10 to 1.20 mass %, and Al.Type: GrantFiled: January 29, 2021Date of Patent: April 30, 2024Assignee: Kobe Steel, Ltd.Inventors: Tatsuki Hashimoto, Kenichiro Yoshida, Yuji Shibuya, Akihiro Tsuruno, Yoshikazu Miyano, Hajime Sugito, Michiyasu Yamamoto, Masayuki Makita, Arisu Fujii, Shin Takewaka, Hayaki Teramoto, Koichi Yamamoto, Toshihide Ninagawa
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Patent number: 9365040Abstract: A liquid ejection head includes a nozzle plate having a plurality of nozzles formed therein from which droplets are ejectable. The nozzle plate includes a nozzle substrate in which a plurality of nozzle holes each constituting a nozzle is formed, and a liquid-repellent film formed on a surface of the nozzle substrate on a droplet ejection side of the nozzle plate. A circumferential portion is formed around each nozzle on the droplet ejection side of the nozzle plate and is smoothly recessed toward an edge portion of the nozzle. The edge portion of the nozzle is smoothly continuous with an inner wall of the nozzle, and the liquid-repellent film having a uniform thickness is formed across the nozzle plate on the droplet ejection side of the nozzle plate to at least the edge portion of the nozzle.Type: GrantFiled: August 21, 2013Date of Patent: June 14, 2016Assignee: RICOH COMPANY, LTD.Inventor: Kenichiro Hashimoto
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Patent number: 9266345Abstract: A liquid discharge head includes a nozzle that discharges liquid droplets, a common liquid chamber that supplies liquid to an individual liquid chamber that is in communication with the nozzle, and a filter plate that is arranged in a liquid flow path of the common liquid chamber. The filter plate includes a filter part that filters the liquid and a damper part that reduces a pressure variation in the common liquid chamber, and the filter part is arranged to be thicker than the damper part.Type: GrantFiled: December 12, 2012Date of Patent: February 23, 2016Assignee: RICOH COMPANY, LTD.Inventors: Yu Kimura, Kenichiro Hashimoto
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Patent number: 9033456Abstract: A liquid-jet head includes a thin film member having a thin part and a thick part, and at least a part of the thin film member is formed of an electroformed film. In the liquid-jet head, the thin film member includes a metallic film forming the thin part, a first electroformed film formed on the metallic film, the first electroformed film forming the thick part, and a second electroformed film covering a connecting part between the metallic film and the first electroformed film.Type: GrantFiled: February 28, 2013Date of Patent: May 19, 2015Assignee: Ricoh Company, Ltd.Inventors: Tatsuya Shimoda, Kenichiro Hashimoto, Keisuke Hayashi
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Publication number: 20140055527Abstract: A liquid ejection head includes a nozzle plate having a plurality of nozzles formed therein from which droplets are ejectable. The nozzle plate includes a nozzle substrate in which a plurality of nozzle holes each constituting a nozzle is formed, and a liquid-repellent film formed on a surface of the nozzle substrate on a droplet ejection side of the nozzle plate. A circumferential portion is formed around each nozzle on the droplet ejection side of the nozzle plate and is smoothly recessed toward an edge portion of the nozzle. The edge portion of the nozzle is smoothly continuous with an inner wall of the nozzle, and the liquid-repellent film having a uniform thickness is formed across the nozzle plate on the droplet ejection side of the nozzle plate to at least the edge portion of the nozzle.Type: ApplicationFiled: August 21, 2013Publication date: February 27, 2014Applicant: RICOH COMPANY, LTD.Inventor: Kenichiro HASHIMOTO
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Publication number: 20130241990Abstract: A liquid-jet head includes a thin film member having a thin part and a thick part, and at least a part of the thin film member is formed of an electroformed film. In the liquid-jet head, the thin film member includes a metallic film forming the thin part, a first electroformed film formed on the metallic film, the first electroformed film forming the thick part, and a second electroformed film covering a connecting part between the metallic film and the first electroformed film.Type: ApplicationFiled: February 28, 2013Publication date: September 19, 2013Applicant: RICOH COMPANY, LTD.Inventors: Tatsuya Shimoda, Kenichiro Hashimoto, Keisuke Hayashi
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Publication number: 20130147887Abstract: A liquid discharge head includes a nozzle that discharges liquid droplets, a common liquid chamber that supplies liquid to an individual liquid chamber that is in communication with the nozzle, and a filter plate that is arranged in a liquid flow path of the common liquid chamber. The filter plate includes a filter part that filters the liquid and a damper part that reduces a pressure variation in the common liquid chamber, and the filter part is arranged to be thicker than the damper part.Type: ApplicationFiled: December 12, 2012Publication date: June 13, 2013Inventors: Yu Kimura, Kenichiro Hashimoto
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Patent number: 7364253Abstract: A liquid drop jet head includes a nozzle jetting a liquid drop, a liquid room connected to the nozzle, a common liquid room connected to the liquid room, a supply opening part supplying the liquid to the common liquid room, and a pressure generating part generating a pressure which pressurizes the liquid provided in the liquid room, wherein the common liquid room has a configuration in which a width of the common liquid room on a plane level is narrower as a point of the width is more remote from the supply opening part.Type: GrantFiled: May 23, 2005Date of Patent: April 29, 2008Assignee: Ricoh Company, Ltd.Inventors: Kenichiro Hashimoto, Mitsumi Fujii, Tomomi Katoh, Tsuneo Maki, Kiyoshi Yamaguchi
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Publication number: 20050219321Abstract: A liquid drop jet head includes a nozzle jetting a liquid drop, a liquid room connected to the nozzle, a common liquid room connected to the liquid room, a supply opening part supplying the liquid to the common liquid room, and a pressure generating part generating a pressure which pressurizes the liquid provided in the liquid room, wherein the common liquid room has a configuration in which a width of the common liquid room on a plane level is narrower as a point of the width is more remote from the supply opening part.Type: ApplicationFiled: May 23, 2005Publication date: October 6, 2005Inventors: Kenichiro Hashimoto, Mitsumi Fujii, Tomomi Katoh, Tsuneo Maki, Kiyoshi Yamaguchi
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Patent number: 6913348Abstract: A liquid drop jet head includes a nozzle jetting a liquid drop, a liquid room connected to the nozzle, a common liquid room connected to the liquid room, a supply opening part supplying the liquid to the common liquid room, and a pressure generating part generating a pressure which pressurizes the liquid provided in the liquid room, wherein the common liquid room has a configuration in which a width of the common liquid room on a plane level is narrower as a point of the width is more remote from the supply opening part.Type: GrantFiled: November 25, 2003Date of Patent: July 5, 2005Assignee: Ricoh Company, Ltd.Inventors: Kenichiro Hashimoto, Mitsumi Fujii, Tomomi Katoh, Tsuneo Maki, Kiyoshi Yamaguchi
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Publication number: 20040104985Abstract: A liquid drop jet head includes a nozzle jetting a liquid drop, a liquid room connected to the nozzle, a common liquid room connected to the liquid room, a supply opening part supplying the liquid to the common liquid room, and a pressure generating part generating a pressure which pressurizes the liquid provided in the liquid room, wherein the common liquid room has a configuration in which a width of the common liquid room on a plane level is narrower as a point of the width is more remote from the supply opening part.Type: ApplicationFiled: November 25, 2003Publication date: June 3, 2004Inventors: Kenichiro Hashimoto, Mitsumi Fujii, Tomomi Katoh, Tsuneo Maki, Kiyoshi Yamaguchi
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Patent number: 6729711Abstract: An ink jet recording apparatus comprises a carriage movable in a given direction with a recording head which is detachably mountable on it and provided with discharge ports for discharging liquid. The apparatus is arranged to include a sensor for detecting the presence or absence of the carriage, the recording head, and at least one of the ink containers. This sensor is provided for the main body of the apparatus and positioned within the movable range of the carriage. With this arrangement, it is possible to simplify the structure required for detecting whether or not these vital elements for recording are installed without any auxiliary power-supply or memory means.Type: GrantFiled: May 5, 2000Date of Patent: May 4, 2004Assignee: Canon Kabushiki KaishaInventors: Kenichiro Hashimoto, Jiro Moriyama, Hiroshi Sugiyama, Isao Ebisawa, Hisao Yaegashi, Toshiharu Inui
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Patent number: 6682185Abstract: A liquid drop jet head includes a nozzle jetting a liquid drop, a liquid room connected to the nozzle, a common liquid room connected to the liquid room, a supply opening part supplying the liquid to the common liquid room, and a pressure generating part generating a pressure which pressurizes the liquid provided in the liquid room, wherein the common liquid room has a configuration in which a width of the common liquid room on a plane level is narrower as a point of the width is more remote from the supply opening part.Type: GrantFiled: March 20, 2002Date of Patent: January 27, 2004Assignee: Ricoh Company, Ltd.Inventors: Kenichiro Hashimoto, Mitsumi Fujii, Tomomi Katoh, Tsuneo Maki, Kiyoshi Yamaguchi
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Publication number: 20020175980Abstract: A liquid drop jet head includes a nozzle jetting a liquid drop, a liquid room connected to the nozzle, a common liquid room connected to the liquid room, a supply opening part supplying the liquid to the common liquid room, and a pressure generating part generating a pressure which pressurizes the liquid provided in the liquid room, wherein the common liquid room has a configuration in which a width of the common liquid room on a plane level is narrower as a point of the width is more remote from the supply opening part.Type: ApplicationFiled: March 20, 2002Publication date: November 28, 2002Inventors: Kenichiro Hashimoto, Mitsumi Fujii, Tomomi Katoh, Tsuneo Maki, Kiyoshi Yamaguchi
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Patent number: 6367914Abstract: An electrostatic ink-jet head includes an oscillation plate which defines a bottom of a pressurizing chamber. An electrode substrate is bonded to the oscillation plate and includes a recessed portion that defines an internal space between the oscillation plate and the electrode substrate. A curved electrode is arranged on the recessed portion so as to face the oscillation plate via the internal space. When a driving voltage is applied to the electrode, the electrode actuates the oscillation plate via an electrostatic force, so as to pressurize ink in the pressurizing chamber, thereby ejecting an ink drop onto the recording paper.Type: GrantFiled: April 14, 2000Date of Patent: April 9, 2002Assignee: Ricoh Company, Ltd.Inventors: Kouichi Ohtaka, Eiichi Ohta, Mitsugu Irinoda, Yohichiro Miyaguchi, Takeshi Takemoto, Kenichiro Hashimoto, Makoto Tanaka, Yutaka Ebi
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Patent number: 6312084Abstract: An ink cartridge, removably mountable on a fixed mounting portion of an ink jet recording apparatus for supplying discharged ink to a recording head carried on a movable carriage of the apparatus, comprises a flag member mounted for protrusion and retraction, an arrangement for protruding the flag member toward a path along which the carriage is moved when the ink cartridge is mounted on the mounting portion, and a photosensor mounted on the carriage in a position where it will be shielded from light by the protruding flag member.Type: GrantFiled: April 11, 2000Date of Patent: November 6, 2001Assignee: Canon Kabushiki KaishaInventors: Toshihiko Ujita, Haruyuki Matsumoto, Keiichi Murai, Kenichiro Hashimoto, Hideki Yamaguchi, Takashi Nojima, Shinya Matsui, Tetsuo Suzuki, Hiroyuki Inoue, Soichi Hiramatsu
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Patent number: 6137503Abstract: An ink jet recording apparatus comprises a carriage movable in a given direction with a recording head which is detachably mountable on it and provided with discharge ports for discharging liquid. The apparatus is arranged to include a sensor for detecting the presence or absence of the carriage, the recording head, and at least one of the ink containers. This sensor is provided for the main body of the apparatus and positioned within the movable range of the carriage. With this arrangement, it is possible to simplify the structure required for detecting whether or not these vital elements for recording are installed without any auxiliary power-supply or memory means.Type: GrantFiled: May 13, 1997Date of Patent: October 24, 2000Assignee: Canon Kabushiki KaishaInventors: Kenichiro Hashimoto, Jiro Moriyama, Hiroshi Sugiyama, Isao Ebisawa, Hisao Yaegashi, Toshiharu Inui
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Patent number: 6081284Abstract: An ink jet recording apparatus for recording by discharging ink from a plurality of recording means to a recording material comprises a plurality of ink paths which are communicated with the recording means and an exchangeable ink tank for retaining ink to be discharged. The ink paths are arranged in a given number corresponding to the number of the recording means, and further, the end portion on the ink tank side is arranged in a position facing one or plural ink supply ports of a first ink tank having ink retaining units to supply ink to such a given number of recording means. This apparatus also comprise a second ink tank having ink retaining units in a number smaller than the aforesaid given number. Here, the second ink tank is provided with means for sealing at least one end portion of the aforesaid ink paths on the ink tank side, which supply ink having colors different from that of the ink contained in the second ink tank.Type: GrantFiled: March 27, 1995Date of Patent: June 27, 2000Assignee: Canon Kabushiki KaishaInventors: Yoichi Tosaka, Kenichiro Hashimoto
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Patent number: 5971530Abstract: An ink container, such as that used in an ink jet recording apparatus, is improved to effectively suppress permeation of ambient air into ink compartments through the container walls and to permit easy refilling with ink. The ink container includes a container body which has a plurality of liquid compartments defined therein by a plurality of partition plates to accommodate the ink, and inter-compartment communicating portions through which adjacent ink compartments communicate with each other, so that successive liquid compartments are emptied one after another as the liquid is progressively consumed. The container body also has a buffer compartment which covers at least the top walls of said liquid compartments. The ink container may have a discrete segments of a porous member which are disposed only in the inter-compartment communicating portions.Type: GrantFiled: January 7, 1997Date of Patent: October 26, 1999Assignee: Canon Kabushiki KaishaInventor: Kenichiro Hashimoto
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Patent number: 5949443Abstract: An equipment, which comprises a scanning type carrier for performing a scanning operation upon reception of a driving force, includes a first standby portion for holding a functional element in a standby state at one end portion side in the scanning direction of the scanning type carrier, a second standby portion for holding a functional element in a standby state at the other end portion side in the scanning direction of the scanning type carrier, a guide mechanism for allowing the scanning type carrier to be movable between the first and second standby portions, and a selector for selecting a functional element located at one of the first and second standby portions in correspondence with the operation mode of the equipment or the functional element driving signal, and integrating the selected functional element to the scanning type carrier.Type: GrantFiled: October 29, 1997Date of Patent: September 7, 1999Assignee: Canon Kabushiki KaishaInventors: Kosuke Yamamoto, Yoichi Tosaka, Kenichiro Hashimoto, Hirofumi Hirano