Patents by Inventor Masaaki Kakizaki
Masaaki Kakizaki 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: 6033067Abstract: A recording apparatus is capable of preventing both contamination on a recording surface due to a contact of a recording medium on an ink discharging surface even when recording on the recording medium with a concave/convex portion and an ill-discharged state of an ink. The recording apparatus has a feeding unit for feeding a recording medium and a recording head as a recording unit for recording an image on the recording medium fed by the feeding unit. A first guide member (shaft) and a second guide member that serve as a correcting mechanism are provided upstream in a feeding direction from the recording head, for correcting the concave/convex portion of the recording medium.Type: GrantFiled: October 7, 1997Date of Patent: March 7, 2000Assignee: Canon Kabushiki KaishaInventors: Masaaki Kakizaki, Yoji Ara, Tsutomu Shimada, Jun Katayanagi, Takeji Niikura, Shoichi Kan, Nozomu Nishiberi, Yasushi Koike
-
Patent number: 5984469Abstract: A recording apparatus with a recording unit for recording an image on a recording medium in consonance with an image signal, a feeder for feeding the recording medium to the recording unit, first auxiliary feeding unit, which contact the feeder when the recording medium is cut sheet paper, but which is separated from the feeder when the recording medium is continuous sheet paper in order to form a feeding route for the continuous sheet paper, second auxiliary feeding unit, which contacts the feeder when the recording medium is cut sheet paper, but which maintains a contact position with the feeder which decreasing pressure against the feeder when the recording medium is continuous sheet paper, and third auxiliary feeding unit, which contacts the feeder when the recording medium is cut sheet paper, but which decreases pressure against the feeder when the recording medium is continuous sheet paper, and switching device for selecting the forward or the backward movement of the first and the second auxiliary feedType: GrantFiled: December 21, 1994Date of Patent: November 16, 1999Assignee: Canon Kabushiki KaishaInventors: Yasushi Koike, Yoji Ara, Masaaki Kakizaki
-
Patent number: 5899613Abstract: The present invention provides an image recording apparatus with an image recording unit for recording an image on a recording medium, a first conveyor for conveying the recording medium to an image recording portion of the image recording unit while bending the recording medium along a drive convey roller by means of the drive convey roller, and a second conveyor for conveying an elongated recording medium having a plurality of pin holes to the first conveyor. A guide capable of changing a contact area between the recording medium and the drive convey roller at a curved portion of the recording medium along the drive convey roller is also provided.Type: GrantFiled: March 27, 1997Date of Patent: May 4, 1999Assignee: Canon Kabushiki KaishaInventors: Yasushi Koike, Yoji Ara, Jun Katayanagi, Masaaki Kakizaki, Nozomu Nishiberi, Seiji Ogasawara
-
Patent number: 5880754Abstract: An ink jet recording apparatus for recording on a recording medium using an ink jet recording head that records by discharging ink from ink discharge ports thereof. The ink jet recording apparatus includes a carriage that carries the ink jet recording head and reciprocally moves the head in a manner such that the recording head is opposite the recording medium, and the carriage includes a temperature stabilization portion contactable with the ink jet recording head carried on the carriage, wherein the temperature stabilization portion radiates heat generated by the ink jet recording head.Type: GrantFiled: May 26, 1995Date of Patent: March 9, 1999Assignee: Canon Kabushiki KaishaInventors: Takeji Niikura, Yoji Ara, Tsutomu Shimada, Shoichi Kan, Masaaki Kakizaki, Nozomu Nishiberi, Yasushi Koike, Seiji Ogasawara
-
Patent number: 5702191Abstract: A sheet feeding apparatus includes a conveyor for applying a conveying force to a sheet, a first guide for guiding the sheet to which the conveying force is applied from the conveyor, a second guide for guiding the sheet guided by the first guide along a curved path, a driver for driving the conveyor, and a controller for controlling the driver to increase the conveying force of the conveyor when the sheet being conveyed by the conveyor is guided with being abutted against the second guide.Type: GrantFiled: December 2, 1994Date of Patent: December 30, 1997Assignee: Canon Kabushiki KaishaInventors: Masaaki Kakizaki, Hirofumi Hirano, Toshihiko Bekki
-
Patent number: 5515086Abstract: A contact structure between a flexible cable for transmitting a signal from a control unit and a signal receiving unit for receiving the signal from said flexible cable characterized in that a plurality of projections are provided on a contact plane of said flexible cable, to which an elastic member having a plurality of protrusions formed at locations corresponding to respective projections in said flexible cable is attached, with the cross section of said protrusion being larger than that of corresponding projection, and the contact plane at a top end of each protrusion being flattened, whereby each projection is pressed against said signal receiving unit with a stress produced by elastic deformation of each protrusion.Type: GrantFiled: October 13, 1992Date of Patent: May 7, 1996Assignee: Canon Kabushiki KaishaInventors: Masaaki Kakizaki, Akira Miyakawa
-
Patent number: 5029264Abstract: The present invention provides a recording apparatus wherein recording is performed by reciprocably shifting a carriage on which a recording head is mounted by means of a stepping motor and which comprises a rotational position detection device for detecting a rotational position of a rotor of the stepping motor, and a control unit for performing a closed loop control for the change-over timing of excitation currents to coils of the stepping motor and for the driving speed of the stepping motor, on the basis of the detection signal from the rotational position detection device, and judges whether the initial drive of the stepping motor and the change-over timing are normal, through the control unit.Type: GrantFiled: September 27, 1989Date of Patent: July 2, 1991Assignee: Canon Kabushiki KaishaInventors: Noriaki Ito, Akira Torisawa, Masaaki Kakizaki
-
Patent number: 4972109Abstract: A stepping motor comprising a rotor having magnetic poles on the peripheral surface thereof at a predetermined pitch, first and second stator yoke units each having pole teeth at the predetermined pitch and disposed with deviation of 1/4 pitch therebetween relative to the rotor, and a coil for exciting the first and second stator yoke units, characterized by means for adjusting the phase deviation between the first and second stator yoke units.Type: GrantFiled: December 8, 1988Date of Patent: November 20, 1990Assignee: Canon Kabushiki KaishaInventors: Masaaki Kakizaki, Akira Torisawa, Noriaki Ito
-
Patent number: 4963808Abstract: A motor control apparatus disclosed in this invention counts output signals from an encoder upon rotation of a rotor, and performs energization switching of a motor coil when the count value has reached a predetermined value.Type: GrantFiled: August 30, 1989Date of Patent: October 16, 1990Assignee: Canon Kabushiki KaishaInventors: Akira Torisawa, Noriaki Itou, Masaaki Kakizaki, Hiroshi Kato, Shigeru Okamura
-
Patent number: 4928050Abstract: A data recorder in which a recording is moved by stepping motor whose rotor rotation angle is detected, the stepping motor having a current switching circuit which controls the application of excitation current to the drive coils of the motor in accordance with the detected rotation angle. A control circuit counts the detected result of the rotor rotation angle, detects the position of the head and generates start and stop control signals of the head, thereby starting and stopping switch-over control of the current switching circuit being effected.Type: GrantFiled: January 27, 1989Date of Patent: May 22, 1990Assignee: Canon Kabushiki KaishaInventors: Akira Torisawa, Masaaki Kakizaki, Noriaki Ito, Shigeru Yoshimura