Patents by Inventor Manabu Kanazawa
Manabu Kanazawa 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).
-
Publication number: 20070273720Abstract: By suppressing deviation of dot-formation positions stemming from insufficient accuracy in conveying a printing medium due to eccentricity of a conveying roller, a printed image in which unevenness is less visible is obtained. An accumulated amount of conveyance errors is decreased by narrowing a nozzle-use range and reducing a conveyance amount over an entire printing region according to a mode used for printing an image in which the coverage of a printing medium is low due to a small number of ink colors to be used, for example, a mode used for printing a monochrome image by using a black ink dominantly in all of the density regions.Type: ApplicationFiled: May 18, 2007Publication date: November 29, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Jun Yasutani, Hitoshi Nishikori, Daisaku Ide, Takeshi Yazawa, Fumiko Yano, Hirokazu Kameda, Manabu Kanazawa
-
Publication number: 20070273899Abstract: By suppressing deviation of dot-formation positions stemming from insufficient accuracy in conveying a printing medium due to eccentricity of a conveying roller, a printed image in which unevenness is less visible is obtained. An accumulated amount of conveyance errors is reduced by narrowing a nozzle-use range and by reducing a conveyance amount over an entire printing region according to the number of colors to be used and desired printing quality in printing an image. Moreover, the nozzles used when the nozzle-use range is narrowed are not fixed, and are switched to be used as appropriate. This prevents only certain nozzles from being used concentratedly, and allows all of the nozzles to maintain substantially the same ejection performance.Type: ApplicationFiled: May 18, 2007Publication date: November 29, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Takeshi Yazawa, Hitoshi Nishikori, Daisaku Ide, Jun Yasutani, Hirokazu Kameda, Manabu Kanazawa, Fumiko Yano
-
Patent number: 6883909Abstract: A recording apparatus for recording on a recording sheet by a recording head includes a conveying roller for conveying the recording sheet, a pinch roller in contact with the conveying roller to rotate following the conveying roller, and a sheet pressure member pivotable on the rotational shaft of the pinch roller. The sheet pressure member prevents the recording sheet from floating, hence making it possible to prevent the recording sheet from interfering with the recording head for the prevention of the disturbance that may be given to recording and damage to the recording head.Type: GrantFiled: May 2, 2002Date of Patent: April 26, 2005Assignee: Canon Kabushiki KaishaInventors: Manabu Kanazawa, Koichi Tanno
-
Publication number: 20020186291Abstract: A recording apparatus for recording on a recording sheet by a recording head comprises a conveying roller for conveying the recording sheet; a pinch roller in contact with said conveying roller to rotate following the conveying roller; and a sheet pressure member pivotable on the rotational shaft of the pinch roller. The sheet pressure member of this recording apparatus prevents the recording sheet from floating, hence making it possible to prevent the recording sheet from interfering with the recording head for the prevention of the disturbance that may be given to recording, and damages to the recording head.Type: ApplicationFiled: May 2, 2002Publication date: December 12, 2002Applicant: Canon Kabushiki KaishaInventors: Manabu Kanazawa, Koichi Tanno
-
Patent number: 6332664Abstract: A recording apparatus for performing a recording operation to a recording medium, conveyed by a conveyor, by using ink jet heads, and comprising an optical detector, arranged within the recording apparatus, for optically detecting desirable information and light-shielding for preventing light entering the interior of the recording apparatus from reaching the optical detector.Type: GrantFiled: August 27, 1999Date of Patent: December 25, 2001Assignee: Canon Kabushiki KaishaInventor: Manabu Kanazawa
-
Patent number: 5885011Abstract: In an electronic apparatus with a printer, there is disclosed a technique such that a printing is performed at a printing speed according to a key operation of the user and, when the user wants to rapidly see the printing result such as an arithmetic operation result or the like irrespective of the key operation, it can be printed at a high speed.Type: GrantFiled: September 6, 1995Date of Patent: March 23, 1999Assignee: Canon Electronic Business Machines (H.K.) Co., Ltd.Inventor: Manabu Kanazawa
-
Patent number: 5880749Abstract: A recording apparatus, which records on a recording medium by using a plurality of recording heads, includes: a carriage for moving the plurality of recording heads in a direction crossing the direction in which the recording medium is fed; and a control section which, when at least two of the plurality of recording heads are of the same recording color, performs recording by alternately using such recording heads for a predetermined number of lines, whereby the amounts of ink consumed by the plurality of recording heads are equalized to make the ink service lives of the recording heads substantially the same.Type: GrantFiled: January 21, 1994Date of Patent: March 9, 1999Assignee: Canon Kabushiki KaishaInventors: Shoushi Kikkawa, Isao Tsukada, Manabu Kanazawa
-
Patent number: 5533822Abstract: According to the present invention, a feeding mechanism comprises feeding members to contact with a recording medium and exert a feeding force to the recording medium, holding portions for holding the feeding members in predetermined positions, and a shaft rotatively supported axially at both ends thereof. At least one portion of the shaft is in a tapering configuration to make its end side portion thinner, hence facilitating the mounting of the feeding member while maintaining the strength of the shaft member. The present invention is also directed to a recording apparatus including such a feeding mechanism.Type: GrantFiled: March 13, 1995Date of Patent: July 9, 1996Assignee: Canon Kabushiki KaishaInventors: Isao Tsukada, Manabu Kanazawa, Shoushi Kikkawa
-
Patent number: 5480243Abstract: The present invention provides an ink jet recording system having a recording means for performing the recording by discharging ink onto a recording medium, wherein an ink receiving portion for receiving ink discharged from the recording means in no association with the recording regarding the recording medium is arranged within a width zone of the recording medium and out of a recordable area of the recording medium. The present invention further provides a carriage shifting apparatus comprising a body frame, a carriage reciprocally shiftable within the body frame, and a guide member having both ends supported by both side plates of the body frame and adapted to guide the carriage, and wherein a support portion provided on at least one ends of the guide member is non-detachably attached to at least one of the side plates by fitting the support portion into a guide member supporting portion provided in the guide plate while elastically deforming the guide member supporting portion.Type: GrantFiled: February 6, 1995Date of Patent: January 2, 1996Assignee: Canon Kabushiki KaishaInventors: Shoshi Kikkawa, Manabu Kanazawa, Isao Tsukada
-
Patent number: 5276466Abstract: Disclosed is a recording apparatus for recording information signals on a recording sheet. The apparatus includes a conveyance mechanism for conveying the sheet, a recording head reciprocating along the sheet for performing recording thereon, a driving power source for generating a driving force rotating in one direction which is used for reciprocating the recording head and for conveying the sheet by the conveyance mechanism, and a mechanism for inhibiting the conveyance of the sheet while the recording head is moving along the recording region of the sheet. The reciprocating operation of the recording head and the conveyance operation of the sheet are effected by a single motor.Type: GrantFiled: March 16, 1992Date of Patent: January 4, 1994Assignee: Canon Kabushiki KaishaInventors: Isao Tsukada, Manabu Kanazawa, Shoushi Kikkawa
-
Patent number: 4801272Abstract: An external pack connector has a recess for receiving an external pack, a table member slidably mounted in the recess and biased oppositely to a direction of insertion of the external pack, a resilient contact member projecting into the recess, and a rotatable lever engaged with the table member and the contact member and rotatable against a spring force of the contact member.Type: GrantFiled: February 10, 1987Date of Patent: January 31, 1989Assignee: Canon Kabushiki KaishaInventors: Manabu Kanazawa, Kazuyoshi Odagawa
-
Patent number: 4653822Abstract: An electronic apparatus having a battery as an electrical power supply and a battery chamber formed by a frame. A contact with the battery and an engaging member that engages with a portion of the frame are provided on a member engaged in the battery chamber. The engaging chamber and the portion of the frame receive the load of the battery. This arrangement provides adequate contact force even when the bottom of the battery chamber has an insufficient strength or when the battery chamber has no bottom plate, thereby allowing for a thin electronic apparatus.Type: GrantFiled: October 24, 1985Date of Patent: March 31, 1987Assignee: Canon Kabushiki KaishaInventor: Manabu Kanazawa
-
Patent number: D290018Type: GrantFiled: June 26, 1985Date of Patent: May 26, 1987Assignee: Canon Kabushiki KaishaInventors: Junji Hirooka, Manabu Kanazawa
-
Patent number: D290019Type: GrantFiled: June 26, 1985Date of Patent: May 26, 1987Assignee: Canon Kabushiki KaishaInventors: Junji Hirooka, Manabu Kanazawa
-
Patent number: D294504Type: GrantFiled: September 23, 1985Date of Patent: March 1, 1988Assignee: Canon Kabushiki KaishaInventors: Nobuo Kikuchi, Manabu Kanazawa