Patents by Inventor Kiyokazu Namekata
Kiyokazu Namekata 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: 6721060Abstract: A recording medium cutter capable of moving between two positions, a cutting position and a non-cutting position, in a short time, and also capable of cutting a recording medium at accurate positions. A main body (40) rotatably holding a rotary blade (32) and a driven blade (34) is located between side plates (36 and 38) of the cutter (30). A main shaft (39) serving as the center shaft of the rotary blade (32) is rotatably secured to the side plates (36 and 38). The main shaft (39) also serves as the rotating shaft of the main body (40). A driving motor is secured to the mounting plate (42) of the side plate (36). When the main shaft (39) is rotated by the driving motor (44), the rotary blade (32) rotates. Because the driven blade (34) is pressed against the side face of the rotary blade (32), as the rotary blade (32) rotates, the driven blade (34) revolves around the main shaft (39). As a result, the main body (40) also rotates around the main shaft (39).Type: GrantFiled: September 23, 1999Date of Patent: April 13, 2004Assignee: Canon Finetech Inc.Inventors: Iwao Kawamura, Ryouma Suzuki, Kazuhiro Murakami, Naoki Kiyohara, Kensuke Izuma, Kiyokazu Namekata, Tatsuo Fujimura, Mitsuharu Takizawa, Keiko Nazuka
-
Patent number: 6478491Abstract: An image forming apparatus having a print member for forming an image on a recording sheet while reciprocating in a predetermined direction includes a pair of conveyance rollers and a separating member for separating the of conveyance rollers from one another. A control lever for controlling the separating member is provided as is a changeover element for permitting the control lever to rotate when said print member moves in a predetermined direction and is not located at an interference area in which the print member would collide with the conveyance rollers if they were separated, and for prohibiting the control lever from rotating when the print member is located at the interference area.Type: GrantFiled: January 22, 2001Date of Patent: November 12, 2002Assignee: Copyer Co., Ltd.Inventors: Kazuhiro Nishimura, Iwao Kawamura, Kiyokazu Namekata, Kazuhiro Murakami, Ryoma Suzuki, Naoki Kiyohara, Kensuke Izuma
-
Patent number: 6312071Abstract: When a carriage 16 is positioned in an end portion in the direction indicated by arrow B in a scanning area thereof, an attachment 46 is in contact with a main frame side wall 1a of a plotter 1, and turns in the direction indicated by arrow D against the enabling force in the direction indicated by arrow C of a helical torsion coil spring 50, so that an image position detector 40 is stored in a storage unit 16c of the carriage 16.Type: GrantFiled: March 4, 1999Date of Patent: November 6, 2001Assignee: Copyer Co., Ltd.Inventors: Iwao Kawamura, Kazuhiro Murakami, Ryoma Suzuki, Kensuke Izuma, Naoki Kiyohara, Kiyokazu Namekata
-
Patent number: 6302602Abstract: The relative positions of cutter blade 42, platen 28, pressing member 44, and bending guide 46 are adjusted to obtain the acute angle &THgr; between side face 42a of cutter blade 42 facing to the delivery direction and recording medium 29 in the range from 25° to 65°.Type: GrantFiled: January 28, 2000Date of Patent: October 16, 2001Assignee: Copyer Co., Ltd.Inventors: Naoki Kiyohara, Iwao Kawamura, Ryoma Suzuki, Takashi Nakamura, Kensuke Izuma, Kiyokazu Namekata
-
Patent number: 6273624Abstract: A cam 37 is rotated in an arrow F direction. This causes sheet conveyance rollers 10a, 10b and guide elements 33, 34 to rotate on a lower conveyance shaft 27 and an upper conveyance shaft 30, respectively, so that they are separated from a drive roller 12. Thus, a spur plate 21 faces the upward stream end with respect to the recording sheet conveyance direction and opens in synchronism with the sheet conveyance rollers 10a and 10b, etc. Accordingly, it is possible to readily remove a recording sheet subjected to the jam.Type: GrantFiled: August 28, 1998Date of Patent: August 14, 2001Assignee: Copyer Co. Ltd.Inventors: Kazuhiro Nishimura, Iwao Kawamura, Kiyokazu Namekata, Kazuhiro Murakami, Ryoma Suzuki, Naoki Kiyohara, Kensuke Izuma
-
Publication number: 20010005466Abstract: A cam 37 is rotated in an arrow F direction. This causes sheet conveyance rollers 10a, 10b and guide elements 33, 34 to rotate on a lower conveyance shaft 27 and an upper conveyance shaft 30, respectively, so that they are separated from a drive roller 12. Thus, a spur plate 21 faces the upward stream end with respect to the recording sheet conveyance direction and opens in synchronism with the sheet conveyance rollers 10a and 10b, etc. Accordingly, it is possible to readily remove a recording sheet subjected to the jam.Type: ApplicationFiled: January 22, 2001Publication date: June 28, 2001Inventors: Kazuhiro Nishimura, Iwao Kawamura, Kiyokazu Namekata, Kazuhiro Murakami, Ryoma Suzuki, Naoki Kiyohara, Kensuke Izuma
-
Patent number: 6250624Abstract: An extension guide unit 30 is provided on a side portion of a recording medium conveying passage. An extension guide 36 is held in a wound state in an extension guide holder 31 of the extension guide unit 30. In order to convey a recording medium, the extension guide 36 is drawn out, by which the recording medium is guided. This enables the recording medium to be smoothly conveyed.Type: GrantFiled: August 28, 1998Date of Patent: June 26, 2001Assignee: Copyer Co., Ltd.Inventors: Naoki Kiyohara, Iwao Kawamura, Kiyokazu Namekata, Kazuhiro Murakami, Kazuhiro Nisimura, Kensuke Izuma, Ryoma Suzuki, Satoru Sasame, Yuuichi Sugiyama, Tatsuo Fujimura
-
Patent number: 6161973Abstract: A first position control member, which presses a recording sheet between a sheet conveyance roller 28c and an image forming area, is disposed and a second position control member, which presses the recording sheet between the image forming area and a spur 42, is disposed. Thus, of the recording sheet in the course of conveyance, a portion located at the image forming area is pressed and stretched by the first position control member 34 and the second position control member 38, and an interval between this portion and an ink ejection surface is maintained at a predetermined distance. Accordingly, even if ink ejected from the ink ejection outlets is absorbed into the recording sheet, so that a fiber of the recording sheet expands, no unevenness is formed on the recording sheet. Therefore, it is possible to suppress the cocking.Type: GrantFiled: July 10, 1998Date of Patent: December 19, 2000Assignee: Copyer Co., Ltd.Inventors: Iwao Kawamura, Kiyokazu Namekata, Kazuhiro Murakami, Kazuhiro Nishimura, Ryoma Suzuki, Kensuke Izuma, Naoki Kiyohara, Satoru Sasame
-
Patent number: 4862215Abstract: An image forming apparatus having an intermediate guide device which is disposed at an intermediate portion between a transfer section and a fixing section for the purpose of guiding a transfer medium while imparting breadthwise tension thereto. This intermediate guide device prevents any wrinkle occurring in the transfer medium near the fixing section from being moved toward the transfer section. In addition, the toner on the transfer medium is prevented from being transferred onto upper-surface rollers of the guide device when the electric charge of the toner leaks to the rollers.Type: GrantFiled: December 15, 1988Date of Patent: August 29, 1989Assignee: Canon Kabushiki KaishaInventors: Akihiro Nomura, Kiyokazu Namekata, Mitsuru Kurata, Takuji Niizawa, Tokihide Ebata, Shinichi Sasaki
-
Patent number: 4845528Abstract: A double-sided image forming apparatus having first and second input devices respectively for entering function data for desired image formation functions and for entering the number of copies to be formed. A memory is provided to store the function data, and a storage compartment is provided to store sheets during duplex copying. An image forming device is arranged to operate in two procedures: a first procedure in which image formation is effected on the sheet's first side in accordance with first function data, and a second procedure in which image formation is effected on the other side in accordance with a second, different, function data. A controller controls the image forming device so that entry of number data and function data is permitted before the first procedure begins, but so that entry of only function data and not number data is permitted after completion of the first procedure.Type: GrantFiled: December 16, 1987Date of Patent: July 4, 1989Assignee: Canon Kabushiki KaishaInventors: Tomohiro Aoki, Kazuo Kawakubo, Katsushi Furuichi, Kiyokazu Namekata, Hidetoshi Tanaka, Yoshikuni Tohyama, Toshirou Kasamura, Toshio Honma
-
Patent number: 4437756Abstract: A double-side image forming apparatus has input unit for entering the number of desired image formation for forming images on both faces of a sheet-shaped image bearing member and a storage section for storing said image bearing member after image formation on a first face thereof. The apparatus is adapted, when the image formation on the first face of said image bearing members is interrupted before the completion of said desired number of image formations, to conduct in continuation the image formation on the second face of the image bearing members stored in said storage section.Type: GrantFiled: July 28, 1982Date of Patent: March 20, 1984Assignee: Canon Kabushiki KaishaInventors: Kazuo Kawakubo, Katsushi Furuichi, Kiyokazu Namekata, Hidetoshi Tanaka, Yashikuni Tohyama, Toshirou Kasamura, Tomohiro Aoki, Toshio Honma
-
Patent number: 4329044Abstract: Apparatus for cleaning an image carrier in an image forming device has a cleaning member, support structure for supporting the cleaning member in such manner as to make the cleaning member contact the image carrier and pressing members engageable with the outer and inner surfaces of the image carrier to grasp it.Type: GrantFiled: January 9, 1981Date of Patent: May 11, 1982Assignee: Canon Kabushiki KaishaInventors: Tadayuki Kitajima, Toshirou Kasamura, Tomohiro Aoki, Yoshihiko Takeoka, Kiyokazu Namekata