Patents by Inventor Masashi Tazawa

Masashi Tazawa 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: 6304344
    Abstract: A transporting system for an image digitizer can handle both positive and negative transparent film material. The transport features accurate linear motion with high resolution in a single compact unit. For the processing of individually framed slides, an automatic eject mechanism is provided. Both manual and motor driven focus adjustments are provided. Individual images can be oriented by an angular adjustment option. A special carrier allows the system to process negatives in uncut strips. The transport can manage larger number of images using either a slide tray or roll feed attachment.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: October 16, 2001
    Assignee: Nikon Corporation
    Inventors: Marco Brandestini, Richard A. Ferraro, Masashi Tazawa, Eisaku Maeda, Nobuhiro Fujinawa, Osamu Ikeda
  • Patent number: 6049375
    Abstract: A film scanner device is provided with a support device that can load and hold a cartridge having a cartridge shaft. The cartridge houses a transmissive original medium that is stored around the cartridge shaft. In a device housing, a detector detects the presence or absence of the cartridge and whether or not the transmissive original medium in the cartridge has been developed. The detector has a minimal number of components to reduce the device costs. The detector can be a single electrical switch that detects at least three states of the support device holding the cartridge. A cover opens to expose and closes to cover a loading unit on the support device. The cover is provided on one portion of the outer surface of the device housing. The cover slides between an open position and a closed position by moving in a surface direction of the outer surface. Accordingly, the cover does not protrude outside the outer surface.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: April 11, 2000
    Assignee: Nikon Corporation
    Inventors: Masashi Tazawa, Takahiro Ikeda, Eisaku Maeda, Maki Suzuki
  • Patent number: 6034719
    Abstract: An image input apparatus enables image reading at a number of different resolutions including higher and lower resolutions without incurring excessive costs. In the present invention, the image input apparatus includes two scanning states. A first scanning state is achieved by performing film take-up with a take-up spool driven by a DC motor and high-speed image reading during the scan. A second scanning state is achieved by performing film feeding with a scan roller driven by a step motor and lower speed image reading during this scan.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: March 7, 2000
    Assignee: Nikon Corporation
    Inventors: Masashi Tazawa, Toshiya Aikawa, Maki Suzuki, Eisaku Maeda
  • Patent number: 6008910
    Abstract: A film image reading apparatus reads the image of a strip film and can generate index display screen data to be displayed on a monitor screen of a host apparatus with the contents arbitrarily selected and set by the user. The film image reading apparatus also includes a memory to store index display setting screen data to be displayed on the monitor screen of the host apparatus and an display data generator which takes an output from an image reader and from a magnetic information reader which are entered from the host apparatus according to setting data selected and set on the index display setting screen, and which generates index display screen data to be displayed on the monitor screen of the host apparatus.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: December 28, 1999
    Assignee: Nikon Corporation
    Inventors: Takahiro Ikeda, Masashi Tazawa, Toshiya Aikawa, Nobuhiro Fujinawa, Yoshiyuki Takeda
  • Patent number: 5926289
    Abstract: A transporting system for an image digitizer can handle both positive and negative transparent film material. The transport features accurate linear motion with high resolution in a single compact unit. For the processing of individually framed slides, an automatic eject mechanism is provided. Both manual and motor driven focus adjustments are provided. Individual images can be oriented by an angular adjustment option. A special carrier allows the system to process negatives in uncut strips. The transport can manage larger number of images using either a slide tray or roll feed attachment.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: July 20, 1999
    Assignee: Nikon Corporation
    Inventors: Marco Brandestini, Richard A. Ferraro, Masashi Tazawa, Eisaku Maeda, Nobuhiro Fujinawa, Osamu Ikeda, Toshiya Aikawa
  • Patent number: 5915818
    Abstract: An improved image input apparatus 1 prevents foreign particles from attaching onto image reading areas of transparency media contained within the apparatus by providing feeding block structure 13 that substantially covers an area between a loading cartridge 11 and a take-up housing 15, except for a small slit-shaped window 13a formed in block 13 in a direction intersecting a direction of movement of the media through the block. The window 13a preferably has a sloping part 13d inclined toward a light axis L1 of an illumination system 12 that passes through the transparency media. The feeding block 13 may also be provided with a pressing member 13b that acts with rails 13c to press on the transparency media and prevent curling.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: June 29, 1999
    Assignee: Nikon Corporation
    Inventors: Masashi Tazawa, Maki Suzuki
  • Patent number: 5854861
    Abstract: An image input apparatus includes an illumination unit to produce a quantity of light to illuminate a transmitting original and a support unit operable to allow the quantity of light to be scanned and to support and move the transmitting original. Additionally, the image input apparatus includes a reading unit to read light which is received by or passed through the transmitting original.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: December 29, 1998
    Assignee: Nikon Corporation
    Inventor: Masashi Tazawa
  • Patent number: 5790716
    Abstract: An image input apparatus includes an illumination unit to produce a quantity of light to illuminate a transmitting original and a support unit operable to allow the quantity of light to be scanned and to support and move the transmitting original. Additionally, the image input apparatus includes a reading unit to read light which is received by or passed through the transmitting original.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: August 4, 1998
    Assignee: Nikon Corporation
    Inventors: Masashi Tazawa, Toshiya Aikawa, Eisaku Maeda, Maki Suzuki
  • Patent number: 5754315
    Abstract: An image input system includes an image input device having a movable carriage and a feeder removably attached to the image input device. The image input device performs a reading action of image information from a source document loaded onto the carriage. The image input device uses a single opening for loading and discharging the film mounts to prevent double loading. The feeder loads the source document onto the carriage during a loading action and discharges the source document from the image input device during a discharging action. A controller controls the operation of the image input device and the feeder. The controller operates a detection system to detect the presence of a film mount remaining in an image input device.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: May 19, 1998
    Assignee: Nikon Corporation
    Inventors: Masashi Tazawa, Eisaku Maeda, Kumiko Matsui, Hidehisa Tsuchihashi, Seiichi Morimatsu, Maki Suzuki, Nobuhiro Fujinawa
  • Patent number: 5742326
    Abstract: An image reading device and method for producing a uniformly focused light image on a source document includes a document mount, an imaging device, and a drive assembly for moving at least one of the mounting device and the imaging device in a secondary scanning direction. The image reading device includes a control circuit for establishing multiple designated positions on the source document in the primary scanning direction and in the secondary scanning direction and for calculating the focus position from a signal output from the imaging device for the multiple designated positions. A cam member can be provided to adjust the position of the document mount along the optical axis of the light striking the document, a cam surface of the cam member contacting the document mount.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: April 21, 1998
    Assignee: Nikon Corporation
    Inventors: Kumiko Matsui, Hidehisa Tsuchihashi, Takahiro Ikeda, Toru Ochiai, Seiichi Morimatsu, Masashi Tazawa, Toshiya Aikawa, Eisaku Maeda
  • Patent number: 5695187
    Abstract: An image input device is provided with an engagement assembly that releasably engages a document to hold the document on a carriage against the bias force of a biasing member. The engagement assembly includes a stop assembly that releasably engages the document and a release mechanism for releasing the original document from the stop assembly permitting the biasing member to urge the document in a discharge direction. The engagement can be operated either manually or by motor. The document can then be removed from the input device at any time except during the scanning operation.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: December 9, 1997
    Assignee: Nikon Corporation
    Inventors: Masashi Tazawa, Maki Suzuki, Eisaku Maeda
  • Patent number: 5646746
    Abstract: An image input device having a movable carriage is provided with an origin detection element that moves out of the path of the document when the document is inserted into the carriage. Because the origin detection element moves out of the path of the document, even long documents, such as, for example, long strips of film containing multiple frames, can be read by the image input device without increasing the size of the carriage or of the image input device. The origin detection element includes a tapered edge that functions as a contrast marker. When the edge is located in the path of the light between the illumination source and the image reading device, the edge can be used to cause the generation of a signal by the image reading device to enable the detection of the point of origin of the carriage in the secondary scanning direction and/or in the focusing direction.
    Type: Grant
    Filed: October 19, 1994
    Date of Patent: July 8, 1997
    Assignee: Nikon Corporation
    Inventors: Masashi Tazawa, Toru Ochiai, Toshiya Aikawa, Eisaku Maeda, Maki Suzuki
  • Patent number: 5612811
    Abstract: A scanning device for scanning an original which is set at a predetermined position and has information recorded thereon comprises: a plurality of light emission members for emitting lights of different wavelengths from each other; a first reflection member having a plurality of reflection planes for selectively reflecting emitted lights of a plurality of wavelengths coming from the light emission members and an optical aid portion; a second reflection member for reflecting the lights reflected by the first reflection member to focus them on the original in a linear pattern; and an imaging optical system for focusing the lights of the linear pattern onto a sensor, whereby the sensor receives the information of the original.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: March 18, 1997
    Assignee: Nikon Corporation
    Inventors: Toshiya Aikawa, Masashi Tazawa, Nobuhiro Fujinawa
  • Patent number: 5589953
    Abstract: An image input system includes an image input device for reading image information from a source document and a feeder for automatically inserting the source documents into the image input device. The feeder includes a loading magazine storing source documents and an adjacent discharge magazine storing source documents discharged from the image input device. The source documents travel along a transport surface within the feeder. A dividing board controls the position of the source documents within the feeder. Detectors are provided to monitor the loading operation. A method of reading image information using the image input system is also disclosed.
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: December 31, 1996
    Assignee: Nikon Corporation
    Inventors: Masashi Tazawa, Nobuhiro Fujinawa, Kumiko Matsui, Maki Suzuki
  • Patent number: 5568225
    Abstract: An image input device that includes an illumination optical system to illuminate an original with light, a reading unit imaging light transmitted by the original, an original retaining unit retaining the original during a reciprocating motion of the original, and a reciprocating motion guide unit guiding the reciprocating motion of the original retaining unit. The original retaining unit has an aperture portion of a size not covered by the original. Output adjustment of the reading unit is performed in accordance with the light which passes through the portion of the aperture which is not covered by the original. A reciprocating motion guide unit is included to guide the reciprocating motion of the original retaining unit. The original retaining unit has an aperture portion having a first region through which the light of the original is caused to pass and a second region through which light is caused to pass in order for output adjustment of the reading unit.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: October 22, 1996
    Assignee: Nikon Corporation
    Inventors: Masashi Tazawa, Toshiya Aikawa, Eisaku Maeda, Nobuhiro Fujinawa
  • Patent number: 5420712
    Abstract: A scanning device for scanning an original which is set at a predetermined position and has information recorded thereon comprises: a plurality of light emission members for emitting lights of different wavelengths from each other; a first reflection member having a plurality of reflection planes for selectively reflecting emitted lights of a plurality of wavelengths coming from the light emission members and an optical aid portion; a second reflection member for reflecting the lights reflected by the first reflection member to focus them on the original in a linear pattern; and an imaging optical system for focusing the lights of the linear pattern onto a sensor, whereby the sensor receives the information of the original.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: May 30, 1995
    Assignee: Nikon Corporation
    Inventors: Eisaku Maeda, Osamu Ikeda, Nobuhiro Fujinawa, Toshiya Aikawa, Masashi Tazawa
  • Patent number: 5420700
    Abstract: An image conversion apparatus for converting an image recorded on an original into an electrical signal upon reception of illumination light transmitted through the original, includes a moving device for mechanically moving the original while holding the original, an optical device for focusing the illumination light transmitted through the original on a focal plane as an image, and an image sensor device for converting the image focused on the focal plane into an electrical signal. The moving device and the optical device share a single base, and a shielding device for preventing a lubricant from being scattered from the moving device to the optical device is formed between the moving device and the optical device.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: May 30, 1995
    Assignee: Nikon Corporation
    Inventors: Eisaku Maeda, Toshiya Aikawa, Masashi Tazawa, Hideaki Kishino