Patents by Inventor Osamu Asakura
Osamu Asakura 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: 5175563Abstract: An image recording apparatus capable of recording an image in different color tones and an ink sheet cassette suitable for use in such an image recording apparatus. The image recording apparatus, when used in combination with the ink sheet cassette, is capable of producing clear image in different recording color tones. The recording color tone can be changed by changing, in accordance with the color tone data, the condition of separation of the ink sheet from the recording medium.Type: GrantFiled: June 12, 1991Date of Patent: December 29, 1992Assignee: Canon Kabushiki KaishaInventors: Hideo Fushimoto, Kazuyoshi Odagawa, Noboru Shimoyama, Osamu Asakura, Yoshio Uchikata, Kenji Kawazoe, Akihiko Sukigara, Yoshikazu Shibamiya, Shigeru Mizoguchi, Toshihide Wada, Ko Hasegawa, Tadashi Hanabusa, Katsuhiro Watanabe, Yuichi Watanabe
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Patent number: 5017942Abstract: An ink ribbon cassette which is adapted to be demountably loaded on a recording apparatus having a recording head capable of recording information on a recording medium supported by a platen, the ink ribbon cassette has the following parts: a substantially box-shaped casing constituted by an upper case and a lower case which are connected to each other at their vertical walls, the casing having a first side wall facing the platen and a second side wall opposing the first side wall, a recessed portion formed in one end of the first side wall and capable of receiving the recording head, engaging portion provided on the second side wall and adapted for engagement with retaining member on the recording apparatus, a pair of through holes constituted by pairs of apertures formed in the portions of the upper and lower cases adjacent to the first side wall, the through holes being adapted for receiving locating members on the recording apparatus so as to locate the ink ribbon cassette, and a path of an ink ribbon extType: GrantFiled: July 17, 1990Date of Patent: May 21, 1991Assignee: Canon Kabushiki KaishaInventors: Osamu Asakura, Yoshio Uchikata, Kenji Kawazoe, Yuji Kanome
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Patent number: 4970042Abstract: A synthetic fiber having an uneven surface structure consisting of wrinkles having ridges and recesses of the surface of the fiber and not presenting specular luster, which may be used, for example, as artificial hair for wigs, can be produced easily and stably by melt-spinning a starting synthetic resin such as nylon and passing the spun monofilament through a cooling bath at a temperature not lower than 30.degree. C. for a period of time sufficient for developing wrinkles in its surface. Inclusion of a pigment such as carbon black in an appropriate amount in the starting material is effective in providing dense distribution of wrinkles.Type: GrantFiled: August 8, 1989Date of Patent: November 13, 1990Assignee: Aderans Co., Ltd.Inventors: Hiroshi Kakiuchi, Setsuo Fukuhara, Michinobu Fujiwara, Hiroshi Maeda, Yutaka Shirakashi, Osamu Asakura, Yoshihiro Yoneda, Tetsuo Noda, Naoyuki Fujita
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Patent number: 4955738Abstract: A printer has a platen for holding a recording paper sheet, a thermal head which is arranged to oppose the platen and which is urged against and prints on the paper sheet in response to a recording signal, a pivot lever for urging or separating the thermal head against or from the platen, a drive source for moving one of the thermal head and the paper sheet relative to the other, so that a new recording surface of the paper sheet sequentially opposes a front surface of the thermal head, a slide clutch for feeding an ink ribbon guided between the paper sheet and the thermal head, and an intermediate rotary body driven by a straight rail member, both of which are interposed between and couple the slide clutch and the drive source, thereby actuating the slide clutch when the thermal head is urged against the platen.Type: GrantFiled: June 6, 1988Date of Patent: September 11, 1990Assignee: Canon Kabushiki KaishaInventors: Yoshio Uchikata, Mineo Nozaki, Osamu Asakura, Masasumi Nagashima
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Patent number: 4887096Abstract: A recording apparatus such as a printer for recording onto a recording medium by use of an ink sheet having an ink comprises: a thermal head to heat the ink sheet to thereby record onto the recording medium; a peeling device to peel off the ink sheet from the recording medium after the heating of the ink sheet by the thermal head on the basis of the recording information; and a controller to control the peeling condition of the peeling device on the basis of the recording information so as to initialize the peeling device at the time of the exchange of the ink sheet or the power-ON of the apparatus. With this apparatus, the high quality recording can be certainly performed by a desired color in response to the color information. This apparatus can mount either the uni-color ink ribbon or the two-color ink ribbon.Type: GrantFiled: October 24, 1988Date of Patent: December 12, 1989Assignee: Canon Kabushiki KaishaInventors: Osamu Asakura, Yoshio Uchikata, Kenji Kawazoe, Akihiko Sukigara, Yoshikazu Shibamiya, Shigeru Mizoguchi
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Patent number: 4792489Abstract: A synthetic fiber having an uneven surface structure consisting of wrinkles having ridges and recesses of the surface of the fiber and not presenting specular luster, which may be used, for example, as artificial hair for wigs, can be produced easily and stably by melt-spinning a starting synthetic resin such as nylon and passing the spun mono-filament through a cooling bath at a temperature not lower than 30.degree. C. for a period of time sufficient for developing wrinkles in its surface. Inclusion of a pigment such as carbon black in an appropriate amount in the starting material is effective in providing dense distribution of wrinkles.Type: GrantFiled: December 15, 1986Date of Patent: December 20, 1988Assignee: Aderans Co., Ltd.Inventors: Hiroshi Kakiuchi, Setsuo Fukuhara, Michinobu Fujiwara, Hiroshi Maeda, Yutaka Shirakashi, Osamu Asakura, Yoshihiro Yoneda, Tetsuo Noda, Naoyuki Fujita
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Patent number: 4746933Abstract: A thermal head has heating resistors for thermal image recording and a lift-off heating resistor for ink lift-off. In image recording, both resistors are energized to maintain the ink adhesive to a recording sheet until an ink ribbon is separated from the recording sheet. In the lift-off operation, only the former resistors are energized but the latter positioned behind is deactivated, so that the ink already deposited on the sheet adheres to the ink ribbon, is cooled due to the deactivation of the latter resistor and is lifted off by the ink ribbon.Type: GrantFiled: December 29, 1986Date of Patent: May 24, 1988Assignee: Canon Kabushiki KaishaInventor: Osamu Asakura
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Patent number: 4741634Abstract: This invention provides a printer capable of regulating the displacement of printing head according to the kind of characters to be printed. The printer has a printing head, an identifying device for identifying the print size of the printing head, and a drive mechanism for driving the printing head according to the print size identified by the identifying device.Type: GrantFiled: June 9, 1986Date of Patent: May 3, 1988Assignee: Canon Kabushiki KaishaInventors: Mineo Nozaki, Osamu Asakura, Masasumi Nagashima
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Patent number: 4733250Abstract: A recording apparatus such as a thermal printer is compact in size and simple in construction, and has a recording head, a pulse motor commonly used for driving the head and for feeding a recording paper sheet, a cam with projections for transmitting the rotational force of the motor to the head so as to selectively move the head between the urged and separated positions with respect to the sheet or platen, ratchet gears to selectively couple the motor and a paper feed roller, and a projection and a guide roller to selectively hold the head at the separated position.Type: GrantFiled: July 14, 1986Date of Patent: March 22, 1988Assignee: Canon Kabushiki KaishaInventors: Mineo Nozaki, Masasumi Nagashima, Yoshio Uchikata, Osamu Asakura
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Patent number: 4711591Abstract: There is disclosed an ink transfer printer in which an ink transfer ribbon is displaced in synchronization with the printing head under electric control to achieve high reliability with a simple mechanism.Type: GrantFiled: February 10, 1986Date of Patent: December 8, 1987Assignee: Canon Kabushiki KaishaInventors: Mineo Nozaki, Osamu Asakura
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Patent number: 4708504Abstract: The present invention provides a paper feeder used in recording systems including printers and comprising feed and pinch rollers between which there is produced a nip used to hold and convey a sheet of paper therebetween. The pinch roller can be engaged or disengaged by the feed roller in a simple and precise manner.Type: GrantFiled: July 2, 1986Date of Patent: November 24, 1987Assignee: Canon Kabushiki KaishaInventor: Osamu Asakura
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Patent number: 4709242Abstract: A thermal transfer printer comprising means for identifying space data present between character data in a print data string. When a space portion is detected by the space identifier, the thermal head is moved apart from the platen of the printer and the ink ribbon feed is stopped thereby preventing the waste of the ink ribbon by the space portion in a line.Type: GrantFiled: February 17, 1987Date of Patent: November 24, 1987Assignee: Canon Kabushiki KaishaInventors: Yoshio Uchikata, Mineo Nozaki, Masasumi Nagashima, Osamu Asakura
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Patent number: 4699534Abstract: There is provided a sheet advancing device including a driving source for driving a sheet advancing roller, a manual advancing member for manual drive of the sheet advancing roller, detention mechanism with a detention function for elastic detent of rotation of the sheet advancing roller at a determined position, and control means for disabling the detention function in sheet advancement with the drive source but enabling the detention function in sheet advancement with the manual advancing member.Type: GrantFiled: February 19, 1987Date of Patent: October 13, 1987Assignee: Canon Kabushiki KaishaInventors: Osamu Asakura, Mineo Nozaki, Yoshio Uchikata, Masasumi Nagashima
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Patent number: 4692774Abstract: A multi-color recording apparatus is provided with a feeding device for feeding a recording material of determined colors, a recording head for depositing the recording material supplied from the feeding device onto a recording sheet in a pattern corresponding to recording information a detector for detecting the color of the recording material supplied from the feeding device and a control for comparing color information contained in the recording information with the result of the detection by the detector and prohibiting the recording operation of the recording head when there is an absence of coincidence in the color of the recording material and the color information in the recording information.Type: GrantFiled: November 14, 1985Date of Patent: September 8, 1987Assignee: Canon Kabushiki KaishaInventors: Masasumi Nagashima, Mineo Nozaki, Osamu Asakura, Yoshio Uchikata
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Patent number: 4676683Abstract: A platen support structure of a thermal transfer printer, for example, has a platen holder holding a platen, a frame supporting two ends of the platen holder, and an indexing mechanism for pivotally supporting the platen holder. The platen holder is curved in the inoperative mode of the printer and is flexed linearly in the operative mode. Clear printing can be performed without irregular line feed.Type: GrantFiled: July 24, 1986Date of Patent: June 30, 1987Assignee: Canon Kabushiki KaishaInventors: Yoshio Uchikata, Mineo Nozaki, Osamu Asakura, Masasumi Nagashima
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Patent number: 4672393Abstract: A thermal printer adapted for multicolor printing is provided with a thermal head which is driven according to information of color of character or image to be printed. The color information is previously stored in a memory. The multicolor ribbon used in the printer is composed of different color inks having different melting points coated in layers on a base film. In driving the thermal head, the amount of thermal energy generated from it is changed by changing the applied voltage to it and/or the driving time of it to perform multicolor printing with the multicolor ink ribbon.Type: GrantFiled: March 20, 1985Date of Patent: June 9, 1987Assignee: Canon Kabushiki KaishaInventors: Yoshio Uchikata, Mineo Nozaki, Osamu Asakura, Masasumi Nagashima
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Patent number: 4669897Abstract: A dot matrix printer comprises a head comprising a plurality of printing elements, a motor for moving the head, an oscillation source for supplying pulses for driving the motor, and varying means for varying the spacing between dots printed by the head at an integer ratio corresponding to the driving pulses put out from the oscillation source.Type: GrantFiled: August 20, 1985Date of Patent: June 2, 1987Assignee: Canon Kabushiki KaishaInventors: Osamu Asakura, Mineo Nozaki, Masasumi Nagashima, Yoshio Uchikata
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Patent number: 4642657Abstract: A recorder comprises a recording head having recording elements, a power supply for supplying a power to the recording head, a cable for electrically connecting the recording head to the power supply to supply the power of the power supply to the recording head, and a voltage regulator for detecting a voltage actually applied to the recording elements to regulate the voltage applied to the recording elements.Type: GrantFiled: March 27, 1985Date of Patent: February 10, 1987Assignee: Canon Kabushiki KaishaInventor: Osamu Asakura
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Patent number: 4639744Abstract: A recording apparatus comprises circuitry supplied with electric power for moving a recording head toward a recording medium into a recording position and a solenoid for holding the recording head in the recording position, circuitry for generating timing signals, and control circuitry for controlling the electric power so as gradually to vary the electric power applied to the solenoid in accordance with the timing signals.Type: GrantFiled: November 21, 1983Date of Patent: January 27, 1987Assignee: Canon Kabushiki KaishaInventors: Yoshio Uchikata, Mineo Nozaki, Osamu Asakura, Masasumi Nagashima
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Patent number: D302829Type: GrantFiled: August 24, 1987Date of Patent: August 15, 1989Assignee: Canon Kabushiki KaishaInventors: Shigeru Nezu, Osamu Asakura