Patents by Inventor Toru Kanda
Toru Kanda 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).
-
Patent number: 8454129Abstract: A liquid ejection recording head includes a recording element substrate including an ejection energy generation element and a plurality of electrode pads, the ejection energy generation element being configured to generate ejection energy by which to eject a liquid, the liquid ejection recording head also includes an electric wiring substrate including a plurality of lead electrodes connected to corresponding electrode pads to apply an electric signal to the ejection energy generation element, wherein one or more of the plurality of electrode pads are not connected to any lead electrode, and each lead electrode connected to an electrode pad adjacent to any of the one or more of the plurality of electrode pads not connected to any lead electrode has a wide part whose width is greater than the width of the other lead electrodes.Type: GrantFiled: June 12, 2009Date of Patent: June 4, 2013Assignee: Canon Kabushiki KaishaInventors: Toru Kanda, Yuki Kozuka
-
Patent number: 7784174Abstract: A method of manufacturing an ink jet print head allows an adhesive bonding a printing element substrate to a support member to be temporarily hardened efficiently and stably in a short time so as to achieve bonding with no air path or the like created at a bonding interface. Electrothermal transducing elements in the printing element substrate generate heat to temporarily harden the adhesive.Type: GrantFiled: September 26, 2008Date of Patent: August 31, 2010Assignee: Canon Kabushiki KaishaInventors: Toru Kanda, Yuki Kozuka
-
Patent number: 7712870Abstract: To provide an ink jet recording head, by which a recording operation with a high recording quality can be performed without causing deformation or breakage of a recording element substrate and the manufacture cost is reduced, a filling groove filled with sealant for protecting a recording element substrate from ink includes a salient or divider.Type: GrantFiled: April 30, 2007Date of Patent: May 11, 2010Assignee: Canon Kabushiki KaishaInventors: Takeshi Shibata, Hiroki Tajima, Toru Kanda
-
Publication number: 20090309929Abstract: A liquid ejection recording head includes a recording element substrate including an ejection energy generation element and a plurality of electrode pads, the ejection energy generation element being configured to generate ejection energy by which to eject a liquid, the liquid ejection recording head also includes an electric wiring substrate including a plurality of lead electrodes connected to corresponding electrode pads to apply an electric signal to the ejection energy generation element, wherein one or more of the plurality of electrode pads are not connected to any lead electrode, and each lead electrode connected to an electrode pad adjacent to any of the one or more of the plurality of electrode pads not connected to any lead electrode has a wide part whose width is greater than the width of the other lead electrodes.Type: ApplicationFiled: June 12, 2009Publication date: December 17, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Toru Kanda, Yuki Kozuka
-
Patent number: 7600851Abstract: In spite of relative deformation between a printing element substrate and a supporting member due to a change in temperature of a printing head, the printing quality is stabilized, and the printing head is not damaged. In detail, as the temperature of the supporting member and the printing element substrate, which are adhered to and fixed to each other in an expanded state, falls to the room temperature, the supporting member contracts significantly more than the printing element substrate, and a stress relation is caused to be present between the respective members. At this time, ribs are deformed in the direction of widening the ribs, which is the direction toward the outside of the printing element substrate, whereby the above-described difference in deformation can be absorbed, and influence on the printing element substrate can be relieved.Type: GrantFiled: June 30, 2006Date of Patent: October 13, 2009Assignee: Canon Kabushiki KaishaInventor: Toru Kanda
-
Publication number: 20090094833Abstract: The present invention provides a method of manufacturing an ink jet print head which allows an adhesive bonding a printing element substrate to a support member to be temporarily hardened efficiently and stably in a short time so as to achieve bonding with no air path or the like created at a bonding interface. Thus, electrothermal transducing elements in the printing element substrate generate heat to temporarily harden the adhesive.Type: ApplicationFiled: September 26, 2008Publication date: April 16, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Toru Kanda, Yuki Kozuka
-
Publication number: 20070285465Abstract: To provide an ink jet recording head by which a recording operation with a high recording quality can be performed without causing deformation or breakage of a recording element substrate and the manufacture cost is reduced.Type: ApplicationFiled: April 30, 2007Publication date: December 13, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Takeshi Shibata, Hiroki Tajima, Toru Kanda
-
Publication number: 20070008378Abstract: In spite of relative deformation between a printing element substrate and a supporting member due to a change in temperature of a printing head, the printing quality is stabilized, and the printing head is not damaged. In detail, as the temperature of the supporting member and the printing element substrate, which are adhered to and fixed to each other in an expanded state falls to the room temperature, the supporting member further greatly contracts than the printing element substrate, and a stress relation is caused to be present between the respective members. At this time, ribs are deformed in the direction of widening the ribs, which is the direction toward the outside of the printing element substrate, whereby the above-described difference in deformation can be absorbed, and influence onto the printing element substrate can be relieved.Type: ApplicationFiled: June 30, 2006Publication date: January 11, 2007Applicant: CANON KABUSHIKI KAISHAInventor: Toru Kanda
-
Patent number: 6993992Abstract: A ball screw which is little subject to deterioration of operating characteristics and occurrence of wear, torque change, noise, vibration, etc. during operation due to stagnation or competition of balls. The ball screw includes a screw shaft having a helical thread groove formed on the outer surface thereof and a nut having a thread groove formed on the inner surface thereof corresponding to the thread groove on the screw shaft which engages with the screw shaft with the interposition of a number of balls rollably provided in a helical ball rolling path formed between the two thread grooves, and spacers between adjacent ones of the number of balls, wherein the variation of the total of the gap between the balls and spacers during the rolling of the balls is smaller than 1/20 of the diameter of the ball.Type: GrantFiled: June 30, 2003Date of Patent: February 7, 2006Assignee: NSK Ltd.Inventors: Toru Kanda, Daisuke Maruyama, Hitoshi Sannomiya
-
Patent number: 6722223Abstract: A ball screw which is little subject to deterioration of operating characteristics and occurrence of wear, torque change, noise, vibration, etc. during operation due to stagnation or competition of balls. The ball screw includes a screw shaft having a helical thread groove formed on the outer surface thereof and a nut having a thread groove formed on the inner surface thereof corresponding to the thread groove on the screw shaft which engages with the screw shaft with the interposition of a number of balls rollably provided in a helical ball rolling path formed between the two thread grooves, wherein the variation of the total of the gap between the balls during the rolling of the balls is smaller than {fraction (1/20)} of the diameter of the ball.Type: GrantFiled: February 5, 2002Date of Patent: April 20, 2004Assignee: NSK Ltd.Inventors: Toru Kanda, Daisuke Maruyama, Hitoshi Sannomiya
-
Publication number: 20030233898Abstract: The invention provides a ball screw which is little subject to deterioration of operating characteristics and occurrence of wear, torque change, noise, vibration, etc. during operation due to stagnation or competition of balls. A ball screw comprising a screw shaft having a helical thread groove formed on the outer surface thereof and a nut having a thread groove formed on the inner surface thereof corresponding to the thread groove on the screw shaft which engages with the screw shaft with the interposition of a number of balls rollably provided in a helical ball rolling path formed between the two thread grooves, wherein the variation of the total of the gap between said balls during the rolling of the balls is smaller than {fraction (1/20)} of the diameter of the ball.Type: ApplicationFiled: June 30, 2003Publication date: December 25, 2003Applicant: NSK LTD.Inventors: Toru Kanda, Daisuke Maruyama, Hitoshi Sannomiya
-
Publication number: 20020148314Abstract: The invention provides a ball screw which is little subject to deterioration of operating characteristics and occurrence of wear, torque change, noise, vibration, etc. during operation due to stagnation or competition of balls. A ball screw comprising a screw shaft having a helical thread groove formed on the outer surface thereof and a nut having a thread groove formed on the inner surface thereof corresponding to the thread groove on the screw shaft which engages with the screw shaft with the interposition of a number of balls rollably provided in a helical ball rolling path formed between the two thread grooves, wherein the variation of the total of the gap between said balls during the rolling of the balls is smaller than {fraction (1/20)} of the diameter of the ball.Type: ApplicationFiled: February 5, 2002Publication date: October 17, 2002Applicant: NSK LTD.Inventors: Toru Kanda, Daisuke Maruyama, Hitoshi Sannomiya