Patents Assigned to Minolta Camera Kabushiki Kaisha
  • Patent number: 6167201
    Abstract: A camera is provided with a varifocal lens including a zoom lens system driven by a motor and by a zoom lens drive control section and a focusing lens system driven by a motor and by a focusing lens drive control section for performing focusing before the zoom lens system is driven or while the zoom lens system is being driven. The camera is also provided with a lens switch sensor for determining whether an operation member for starting an exposure operation has been operated and a body control section and a lens control section for halting the driving of the zoom lens system when it is determined that the operation member has been operated by the sensor to re-start the driving of the focusing lens system.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: December 26, 2000
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Yoshihiro Hara, Kenji Ishibashi, Kimiharu Akahoshi, Norihiko Akamatsu
  • Patent number: 5933675
    Abstract: A central control system that monitors and remotely controls one or more terminal devices which may be part of an apparatus such as an imaging machine. Each terminal device communicates with the central control system at a predetermined time and relays the operational conditions of the apparatus to which it is associated. Relayed conditions may include information such as the number of imaging operations performed in a period of time. The central control system controls each of the terminal devices in accordance with the information transmitted from each of the terminal devices. The central control system supervises incoming transmissions from the terminal devices and detects when a terminal device has not communicated at its predetermined time. When this condition arises, the identity of the non-reporting terminal, as well as the predetermined time it was to have contacted the central control system, are displayed at the central control system.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: August 3, 1999
    Assignees: Sanyo Electric Col., Ltd., Minolta Camera Kabushiki Kaisha
    Inventors: Yoji Sawada, Toru Kirimura, Seiji Watanabe, Kazunobu Maekawa, Sumiaki Hirata
  • Patent number: 5854692
    Abstract: When a jam occurs in outputting an image to a printer in a facsimile apparatus, it is displayed that the printer is in a state of trouble. If the printer trouble is not solved in a prescribed time period, that one group of original being printed is stored in a compressed data memory (not shown) as a re-recording file. When the trouble is solved, the data of that one group of original stored in the re-recording file is output to the printer. As a result, a facsimile apparatus capable of clarifying the destination of the printed received image data after an interruption can be provided.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: December 29, 1998
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Munehiro Nakatani
  • Patent number: 5765170
    Abstract: An electronic mail system in which a mail management method is improved in order to reduce the complexity and labour of handling transmitted information so that its convenience is increased. In an electronic mail system in which a plurality of data processing systems exchange messages through mailboxes MB utilizing the stored and forward system, the data processing system which receives a mail M transferred from the mailbox MB is provided with an electronic mail terminal utility. When the data processing system receives the mail M, the electronic mail terminal utility classifies a data file written in the mail M according to specific data contained in the mail M and stores the data file in an appropriate folder based on a result of the classification.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: June 9, 1998
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Takashi Morikawa
  • Patent number: 5749569
    Abstract: A sheet feeding apparatus has a forwarding device for successively forwarding a plurality of sheets accommodated in a state of stacked layer one by one. The forwarding device is movable between a sheet forwarding position where the forwarding device is brought in contact with the leading end of a sheet for forwarding the sheet and a retracted position where the forwarding device is separated away from the sheet. The apparatus includes a transport device for receiving a sheet forwarded by the forwarding device and transporting the sheet in a predetermined direction of transport.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: May 12, 1998
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Tomoyuki Atsumi, Yuusuke Morigami, Hirokazu Matsuo
  • Patent number: 5745253
    Abstract: The invention relates to an image reading apparatus for reading images of original documents by moving the original relative to a stationary image reader. A single image reader is used in a first embodiment. When reading the image of a first side, the single image reader is stationary at a first position to read the original. When reading the image of a second side, the single image reader is moved to a second position corresponding to the size of the original, and reads the image of the second side while said image reader is stationary at the second position. The image reading apparatus of the second embodiment uses a stationary first reader for reading a first side of an original, and a movable second image reader for reading a second side of an original. The image reading apparatus of the second embodiment changes the position of the image reader in accordance with the size of the original.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: April 28, 1998
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Hideo Muramatsu, Munehiro Nakatani, Akio Nakajima
  • Patent number: 5731864
    Abstract: A camera includes a CCD line sensor divided into a plurality of blocks and a plurality of monitors provided near each of the divided blocks and sensing the amount of received light corresponding to each block. The storage of charge in each block of the CCD is controlled based on the amount of the light received by the monitor. Each block corresponds to each part of an object in a finder of the camera.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: March 24, 1998
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Masataka Hamada, Kazuhiko Yukawa, Tokuji Ishida, Toshio Norita
  • Patent number: 5697000
    Abstract: A camera is provided with a varifocal lens including a zoom lens system driven by a motor and by a zoom lens drive control section and a focusing lens system driven by a motor and by a focusing lens drive control section for performing focusing before the zoom lens system is driven or while the zoom lens system is being driven. The camera is also provided with a lens switch sensor for determining whether an operation member for starting an exposure operation has been operated or not and a body control section and a lens control section for halting the driving of the zoom lens system when it is determined that the operation member has been operated by the sensor to re-start the driving of the focusing lens system.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: December 9, 1997
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Yoshihiro Hara, Kenji Ishibashi, Kimiharu Akahoshi, Norihiko Akamatsu
  • Patent number: 5697009
    Abstract: Disclosed is an image processing apparatus by which a first image corresponding to first image information and a second image corresponding to second image information are superimposed one on the top of the other, the apparatus having a scanning device for scanning a document line by line to output the first image information; a composing device for composing the first and second image information so that the first and second images are superimposed one on the top of the other; a detecting device for detecting changes of the scanning speed in a direction perpendicular to the lines; and a controlling device for so controlling the composing device that the relative position of the second and first images in the direction are adjusted line by line in accordance with the results detected.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: December 9, 1997
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Kenichi Muroki, Shoji Imaizumi
  • Patent number: 5696531
    Abstract: An image display apparatus according to the present invention includes an image data memory for storing image data to be displayed, an image plane for displaying an image, a low resolution image display unit for displaying an image based on image data on the image plane with low resolution, a mouse for designating a position in a particular region in the image plane, and a high resolution image display unit for displaying an image based on image data of the particular region designated by the mouse on the image plane with high resolution of a resolution level higher than the resolution level of the low resolution.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: December 9, 1997
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Katsunori Suzuki, Toshihiko Kumon, Yoshikazu Ikenoue
  • Patent number: 5692741
    Abstract: In an operation for transporting a sheet by a first roller to a second roller pair downstream of the first roller, and further transporting the sheet by the second roller pair, the time during which the sheet is transported by the first roller is controlled, responsive to a comparison of a reference time and the actual time required for a sheet to be transported from the first roller to a predetermined position in the sheet transport path, to suppress disadvantages such as jamming and deformation into a Z-form, which may be caused by reduction of a transporting performance due to wear of the rollers and adhesion of paper powder to the rollers.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: December 2, 1997
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Hidenobu Nakamura, Koji Naito, Yoshiaki Nakajima
  • Patent number: 5687965
    Abstract: A sheet supply device supplying sheets from a magazine thereof to an image forming apparatus and a mechanism for setting the magazine to a body of the image forming apparatus. The magazine storing stacked sheets is provided with reinforcing members which are disposed at side walls of the magazine to form convex portions relative thereto so as to reinforce the side walls and regulate the position of the stacked sheets in a sheet width direction. A projecting portion having an inclined surface is provided in either the magazine or a receiving portion in the image forming apparatus body to which the magazine is set. When the magazine is slid on an upper surface of the receiving portion for being set to the image forming apparatus body, a leading end of the magazine in a magazine setting direction is lifted by use of the inclined surface of the projecting portion so as to be accurately and smoothly set to the body.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: November 18, 1997
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Naoyuki Matsuda, Hajime Takei, Homare Sano, Richard R. Lemberger, Stuart J. Wyman
  • Patent number: 5687404
    Abstract: A single-lens reflex camera comprises a taking lens having a zooming optical system, a finder whose angle of view is determined according to a focal length of the taking lens, and an operation member which is manually operated. In the single-lens reflex camera, the focal length of the taking lens is changed by driving the zooming optical system, and the zooming operation is controlled in response to an operation of the operation member so that the focal length of the taking lens is changed in the wide-angle direction by a predetermined amount. An angle of view corresponding to that which is seen before the focal length is changed is displayed within the finder.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: November 11, 1997
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Kenji Ishibashi, Yoshihiro Hara, Kazuhiko Yukawa, Akihiko Fujino, Yasuo Maeda, Shigeto Ohmori, Fumiaki Ishito, Hiroshi Ootsuka, Masayuki Miyazawa
  • Patent number: 5682583
    Abstract: A developing device having a developing sleeve opposed to a photoreceptor, and a developer transport portion adjacent to the sleeve. The developer transport portion is divided into first and second portions by a partition, and the developer is circulated between the first and second portions. A fresh toner is supplied to the developer in the second portion to be transported to the first portion while being mixed, and thereafter is supplied to the sleeve along an axial direction of the sleeve in the first portion. The second portion is provided with a transport member by which the developer is transported at an upstream side of the second portion with respect to the developer transport direction in the second portion with a speed faster than the toner supply speed and the transport speed of the developer at a downstream side of the first portion with respect to the developer transport direction in the second portion.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: October 28, 1997
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Noboru Ito, Yoshihiro Shojo, Katsuhiko Takeda
  • Patent number: 5673116
    Abstract: In the electronic sort of a digital copying machine, image data of a document consisting of a plurality of sheets are read and compressed to bi-level data in a memory. The compressed image data are recovered to multi-level data successively. When a plurality of copies of the document are produced, the recovery action is repeated by the number of the copies. In a facsimile machine combined with a digital copying machine, bi-level image data for the automatic reduction transmission are recovered first to multi-level image data, and the density of the multi-level image data is changed for the reduction. Then, the multi-level data are converted to bi-level data for facsimile transmission. In a digital two-color copying machine, multi-level image data of the second color of the two colors to be recorded later has to be synchronized to those of the other in correspondence to the delay of the recording time between the two colors.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: September 30, 1997
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Shigenobu Fukushima
  • Patent number: 5671277
    Abstract: Additional data useful for the management of copies of a document for an image forming apparatus is embedded in a hard copy of the document. The additional data is embedded in an inherent image of a document as pixels arranged in a prescribed format, and, preferably, the size of the pixels is such as to not be easily recognized with the naked eye. The image data for embedding the additional data can be obtained by reading a document, or by receiving data sent from a computer or read from a floppy disk. Additional data embedded in a hard copy can be extracted from the image data on the hard copy, and the production of a copy according to the image data can be controlled according to the extracted additional data. For example, if the additional data means that the source of the hard copy is a secret document, copying thereof is allowed only for a legitimate user. Additional data generated for each copy is compiled and is used to manage copies of various sources systematically.
    Type: Grant
    Filed: October 21, 1994
    Date of Patent: September 23, 1997
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Yoshikazu Ikenoue, Hideo Kumashiro, Munehiro Nakatani
  • Patent number: 5671456
    Abstract: A microcomputer provided in a camera body uses a data signal read by sensors facing the data disk of a film cartridge as a positional signal to set the stop position of the spool for providing exposed/unexposed indication to the film. The voltage of the power supply of the camera is detected to modulate a pulse duration by which the number of rotations of the motor can be kept constant in rewinding the film. The sensors are disposed upstream in the rotational direction of the data disk by a certain angle .theta. with respect to the point at which the spool is stopped in order to prevent the dislocation between the display mark of the cartridge and the pointing mark of the data disk. The microcomputer discriminates whether or not data has been read. The mechanism for feeding the film is controlled to set the film at a predetermined position after the decision that the data has been read.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: September 23, 1997
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Kenji Tsuji, Toshihito Kido, Satoshi Hamada
  • Patent number: 5665508
    Abstract: This invention relates to a developer for electrophotography comprising:a domain resin phase containing specified additives,a matrix resin phase containing specified additives anda dispersion assistant,the matrix resin having a low compatibility with the domain resin, and the dispersion assistant having a compatibility with both of the domain resin and matrix resin and an Izod impact value higher than the matrix resin.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: September 9, 1997
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Sanji Inagaki, Shoichi Tsuge, Mineyuki Sako, Kenzo Toya, Takashi Akazawa
  • Patent number: 5663027
    Abstract: This invention provides a two-component developer comprising magnetic carrier particles and toner particles which contain magnetic particles at a specified content, being excellent in high speed copying system.
    Type: Grant
    Filed: October 18, 1994
    Date of Patent: September 2, 1997
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Toshitaro Kohri, Akihiro Nakamura, Yoshimasa Nishihara
  • Patent number: 5659844
    Abstract: A fixing device which changes the amount of heat received by a recording paper in accordance with a portion of the recording paper with respect to a paper transporting direction. The fixing device controls a heater for heating a fixing member so as to raise the temperature of the fixing member when a trailing half of the recording paper is disposed between the fixing member and a pressure member, or controls the heater so as to decrease the temperature of the fixing member when either one of a leading end and a trailing end of the recording paper is disposed between the fixing member and the pressure member.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: August 19, 1997
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Tohru Fujiwara