Patents by Inventor Kazuyuki Nakahara
Kazuyuki Nakahara 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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Publication number: 20040186939Abstract: A communications interface apparatus includes a register, first and second memories, and a control circuit. The register circuit stores data to be transferred to a host computer. The first memory stores first information indicating a specific address of the register and representing an access to the apparatus executed by the host computer for a data transfer. The second memory stores second information, sent from the host computer in association with the first information stored in the first memory, to be written into the register at the specific address indicated by the first information stored in the first memory. The control circuit performs an information writing operation for writing the first information into the first memory and the second information into the second memory in chronological order of accesses executed.Type: ApplicationFiled: March 12, 2004Publication date: September 23, 2004Inventors: Isamu Miyanishi, Kazuyuki Nakahara
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Patent number: 5897236Abstract: A communication control device connected between an image forming apparatus and a communication line in an image forming apparatus supervising system which connects the image forming apparatus and a host machine by the communication line. Assume that particular data of an image forming apparatus and updated day by day should be read periodically. Then, even when the power supply to the image forming apparatus is shut off, a host machine can access the apparatus to read the data which should be read periodically, and receive it. In addition, the data can be preserved until the next time for reading.Type: GrantFiled: January 7, 1998Date of Patent: April 27, 1999Assignee: Ricoh Company, Ltd.Inventors: Yasunari Hashimoto, Yasuo Kawada, Kazuyuki Nakahara, Osamu Kizaki, Tomofumi Harada, Nobuaki Tomidokoro
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Patent number: 5812900Abstract: A communication control device connected between an image forming apparatus and a communication line in an image forming apparatus supervising system which connects the image forming apparatus and a host machine by the communication line. Assume that particular data of an image forming apparatus which is updated day by day should be read periodically. Then, even when the power supply to the image forming apparatus is shut off, a host machine can access the apparatus to read the data which should be read periodically, and receive it. In addition, the data can be preserved until the next time for reading. The data is stored in a first memory until the data is ready for transfer to the host machine, at which time the data is transferred to a second memory and then to the host machine.Type: GrantFiled: August 8, 1996Date of Patent: September 22, 1998Assignee: Ricoh Company, Ltd.Inventors: Yasunari Hashimoto, Yasuo Kawada, Kazuyuki Nakahara, Osamu Kizaki, Tomofumi Harada, Nobuaki Tomidokoro
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Patent number: 5784663Abstract: A control system for collectively supervising a plurality of copiers or similar image forming apparatuses connected to a control device by communication lines with or without the intermediary of communication control units. To down-load data relating to image formation, the control device determines whether or not a copier of interest is in an inoperative state and, if it is in an inoperative state, automatically sends the data to the copier via a telephone line, an exchange, and a communication control unit. This data is written to storing means built in the copier. To up-load data relating to image formation, the control device causes each copier to automatically send the data stored in the storing means and stores the data in memory means. Up-loading is effected at an optimal time other than the time when the copier is performing an automatic adjustment, is in use, or is quite likely to be used.Type: GrantFiled: March 7, 1997Date of Patent: July 21, 1998Assignee: Ricoh Company, Ltd.Inventors: Masayuki Hayashi, Yoshihiro Mitekura, Koichi Kanaya, Masato Terao, Toshiya Tagawa, Nobuaki Tomidokoro, Masahiro Kitayama, Osamu Kizaki, Yasuo Kawada, Kazuyuki Nakahara, Tomofumi Harada, Yasunari Hashimoto
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Patent number: 5694201Abstract: A control system for collectively supervising a plurality of copiers or similar image forming apparatuses connected to a control device by communication lines with or without the intermediary of communication control units. To down-load data relating to image formation, the control device determines whether or not a copier of interest is an inoperative state and, if it is in an inoperative state, automatically sends the data to the copier via a telephone line, an exchange, and a communication control unit. This data is written to storing means built in the copier. To up-load data relating to image formation, the control device causes each copier to automatically send the data stored in the storing means thereof and stores the data in memory means thereof. Up-loading is effected at an optimal time other than the time when the copier is performing an automatic adjustment, in use, or quite likely to be used.Type: GrantFiled: December 20, 1995Date of Patent: December 2, 1997Assignee: Ricoh Company, Ltd.Inventors: Masayuki Hayashi, Yoshihiro Mitekura, Koichi Kanaya, Masato Terao, Toshiya Tagawa, Nobuaki Tomidokoro, Masahiro Kitayama, Osamu Kizaki, Yasuo Kawada, Kazuyuki Nakahara, Tomofumi Harada, Yasunari Hashimoto
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Patent number: 5583615Abstract: A communication control device connected between an image forming apparatus and a communication line in an image forming apparatus supervising system which connects the image forming apparatus and a host machine by the communication line. Assume that particular data of an image forming apparatus and which is updated day by day should be read periodically. Then, even when the power supply to the image forming apparatus is shut off, a host machine can access the apparatus to read the data which should be read periodically, and receive it. In addition, the data can be preserved until the next time for reading. The data is stored in a first memory until the data is ready for transfer to the host machine, at which time the data is transferred to a second memory and then to the host machine.Type: GrantFiled: November 30, 1993Date of Patent: December 10, 1996Assignee: Ricoh Company, Ltd.Inventors: Yasunari Hashimoto, Yasuo Kawada, Kazuyuki Nakahara, Osamu Kizaki, Tomofumi Harada, Nobuaki Tomidokoro
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Patent number: 5546164Abstract: A control system for collectively supervising a plurality of copiers or similar image forming apparatuses connected to a control device by communication lines with or without the intermediary of communication control units. To down-load data relating to image formation, the control device determines whether or not a copier of interest is an inoperative state and, if it is in an inoperative state, automatically sends the data to the copier via a telephone line, an exchange, and a communication control unit. This data is written to a storage device built in the copier. To up-load data relating to image formation, the control device causes each copier to automatically send the data stored in the storing device thereof and stores the data in a memory thereof. Up-loading is effected at an optimal time other than the time when the copier is performing an automatic adjustment, in use, or quite likely to be used.Type: GrantFiled: October 21, 1994Date of Patent: August 13, 1996Assignee: Ricoh Company, Ltd.Inventors: Masayuki Hayashi, Yoshihiro Mitekura, Koichi Kanaya, Masato Terao, Toshiya Tagawa, Nobuaki Tomidokoro, Masahiro Kitayama, Osamu Kizaki, Yasuo Kawada, Kazuyuki Nakahara, Tomofumi Harada, Yasunari Hashimoto
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Patent number: 5485246Abstract: A control system for collectively supervising a plurality of copiers or similar image forming apparatuses connected to a control device by communication lines with or without the intermediary of communication control units. To down-load data relating to image formation, the control device determines whether or not a copier of interest is an inoperative state and, if it is in an inoperative state, automatically sends the the copier via a telephone line, an exchange, and a communication control unit. This data is written to a storing device built in the copier. To up-load data relating to image formation, the control device causes each copier automatically send the data stored in the storing device thereof and stores the data in a memory thereof. Up-loading is effected at an optimal time other than the time when the copier is performing an automatic adjustment, in use, or quite likely to be used.Type: GrantFiled: November 22, 1994Date of Patent: January 16, 1996Assignee: Ricoh Company, Ltd.Inventors: Masayuki Hayashi, Yoshihiro Mitekura, Koichi Kanaya, Masato Terao, Toshiya Tagawa, Nobuaki Tomidokoro, Masahiro Kitayama, Osamu Kizaki, Yasuo Kawada, Kazuyuki Nakahara, Tomofumi Harada, Yasunari Hashimoto
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Patent number: 5434650Abstract: An image forming unit management system includes: an image forming unit; a communication control unit for connecting the image forming unit to a management unit via a communication line to transmit a message from the image forming unit to the management unit and to transmit a response message from the management unit to the image forming unit; a storage part for storing a plurality of message codes respectively indicating a plurality of message types; an operation part for inputting a message type and a request for transmitting a message of the message type to the management unit; a first control part for setting one of the plurality of message codes that corresponds to the input message type and for transmitting a message including the message code to the communication control unit if the request is inputted from the operation part; and a second control part for transmitting the message, received from the first control part, to the management unit, and for transmitting a response message to the image formingType: GrantFiled: December 9, 1993Date of Patent: July 18, 1995Assignee: Ricoh Company, Ltd.Inventors: Kazuyuki Nakahara, Tomofumi Harada, Yasunari Hashimoto, Yasuo Kawada, Osamu Kizaki
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Patent number: 5341196Abstract: Image forming equipment of the type supplying a toner to a developing device thereof by using a cartridge which is filled with a toner. The cartridge has a sealed opening and is brought to a toner supply position in the equipment without having the opening unsealed by the operator. Even when the cartridge is pulled out during the loading operation, the toner is not scattered about. A new cartridge for replacing a used empty cartridge is brought to the toner supply position without requiring the operator to remove the empty toner. During the replacement, the toner remaining on the walls of the empty cartridge is prevented from being sprinkled.Type: GrantFiled: October 23, 1991Date of Patent: August 23, 1994Assignee: Ricoh Company, Ltd.Inventors: Takashi Hodoshima, Kouji Ishigaki, Kazuyuki Nakahara, Fumio Kishi
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Patent number: 5184184Abstract: A copier, facsimile transceiver, printer or similar electrophotographic image forming apparatus uses a toner cartridge whose volume decreases when released a toner. A cartridge collecting section for collecting toner cartridges is lower in height than the cartridge when the cartridge is filled with a toner. The cartridge has top plate, a bottom plate and sides which are implemented by an elastic member or a film-like member. The cartridge collecting section, a waste toner tank and a photoconductive element storing section are constructed into a unit which is removable from the apparatus body.Type: GrantFiled: February 14, 1992Date of Patent: February 2, 1993Assignee: Ricoh Company, Ltd.Inventors: Keisuke Hayashi, Kouji Ishigaki, Kazuyuki Nakahara, Masato Yanagida, Fumio Kishi
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Patent number: 5172244Abstract: A digital copier having a single scanner and a plurality of plotters which are physically independent of each other. The plotters may be designated one at a time. When the designated plotter is already operating, another plotter which is idle is desingated. When all the plotters are in operation at the time of designation, image data representative of a document read by the scanner are stored and, as soon as a designated plotter becomes idle, the plotter begins to plot the stored image data automatically. Further, when an error occurs in any of the plotters being operated, the copying operations are handed over to another plotter.Type: GrantFiled: July 11, 1991Date of Patent: December 15, 1992Assignee: Ricoh Company, Ltd.Inventors: Kazuyuki Nakahara, Tetsuo Sakurai
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Patent number: 5051839Abstract: A digital copier having a single scanner and a plurality of plotters which are physically independent of each other. The plotters may be designated one at a time. When the designated plotter is already operating, another plotter which is idle is designated. When all the plotters are in operation at the time of designation, image data representative of a document read by the scanner are stored and, as soon as a designated plotter becomes idle, the plotter begins to plot the stored image data automatically. Further, when an error occurs in any of the plotters being operated, the copying operations are handed over to another plotter.Type: GrantFiled: August 10, 1989Date of Patent: September 24, 1991Assignee: Ricoh Company, Ltd.Inventors: Kazuyuki Nakahara, Tetsuo Sakurai
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Patent number: 4903146Abstract: A digital image forming apparatus has an operation device for successively entering copying conditions with respect to at least first and second documents which are successively set on a reading device and including a display part for displaying the copying conditions entered with respect to one document at one time, where the copying conditions for the second document are entered after the first document is read by the reading device and after a writing device starts to write the first document simultaneously as when the reading device starts to read the second document, and a control device for controlling operation timings of the reading device, a memory device, the writing device and the operation device so that the writing device starts to write the second document only after the writing of the first document is completed.Type: GrantFiled: December 9, 1988Date of Patent: February 20, 1990Assignee: Ricoh Company, Ltd.Inventor: Kazuyuki Nakahara