1
Akio Kojima, Kazuyuki Murata, Yasuhiro Kuwahara, Naoki Takahashi: Image processing apparatus for reading an image by hand scanning. Matsushita Electric Industrial, Morrison & Foerster, September 7, 1999: US05949921 (45 worldwide citation)

A scanner for reading an original image by hand scanning usually detects scanning positions of the reading sensor on the original image sequentially and stores read image data into image memory according to said scanning positions. However, an area in which the image data is not stored may appear wh ...


2
Yasuhiro Kuwahara: Noise elimination apparatus for eliminating noise components having a high density and a low density. Matsushita Electric Industrial, Ratner & Prestia, May 31, 1994: US05317420 (38 worldwide citation)

Color image data of which background is removed is converted into monochrome data and noise in the monochrome data is roughly discriminated in a first noise discrimination process. At the same time, the color and density of an attentional pixel, information area including a character or a picture, a ...


3
Yusuke Monobe, Tatsumi Watanabe, Yasuhiro Kuwahara, Akio Kojima, Toshiharu Kurosawa: Image processing apparatus and image processing method. Matsushita Electric Industrial, Wenderoth Lind & Ponack L, November 6, 2007: US07292733 (32 worldwide citation)

An image processing apparatus for performing filter processing on a decoded image that is obtained by decoding compressed data obtained by coding a multi-valued image by the block of M×N pixels so as to eliminate noises and generating a reconstructed image. The image processing apparatus includes: a ...


4
Yasuhiro Kuwahara, Haruo Yamashita, Tsumoru Fukushima: Spatial frequency adaptive field--interpolation method and apparatus therefor. Matsushita Electric Industrial, Panitch Schwarze Jacobs & Nadel P C, April 21, 1998: US05742348 (21 worldwide citation)

In interpolation lines having plural angles passing through an attentional pixel on a scanning line in one field to be interpolated having pixels on an upper scanning line placed over the attentional pixel and pixels on a lower scanning line placed under the attentional pixel, a horizontal spatial f ...


5
Tatsumi Watanabe, Akio Kojima, Yasuhiro Kuwahara, Yusuke Monobe, Toshiharu Kurosawa, Hirotaka Oku: Image processing device and image processing method. Matsushita Electric Industrial, Wenderoth Lind & Ponack L, June 10, 2008: US07386185 (20 worldwide citation)

An image processing apparatus for automatically improving the contrast of an input image that is obtained from a digital camera or the like, and obtaining a sharper and clearing image. A contrast improvement unit (11) performs a contrast improvement process on the input image by comparing an object ...


6
Akio Kojima, Yasuhiro Kuwahara, Tatsumi Watanabe: Data monitoring method, data monitoring device, copying device, and storage medium. Matsushita Electric Industrial, McDermott Will & Emery, October 19, 2004: US06807388 (19 worldwide citation)

Each copy elements of data being an object to be monitored such as printing data or reading data including at least one kind of copy elements is monitored according to at least one kind of copy inhibition information stored in inhibition information storage means and capable of being updated. By the ...


7
Akio Kojima, Kazuyuki Murata, Naoki Takahashi, Yasuhiro Kuwahara: Image processing apparatus for adjusting scanning position. Matsushita Electric Industrial, Morrison & Foerster, July 27, 1999: US05930411 (17 worldwide citation)

Picture images being joined without connection gaps can be produced with high quality by adjusting a position error, even if an error is included in a scanning position being detected, and by preventing a map missing area from arising which is caused by the adjustment of position error. A position e ...


8
Tsutomu Kai, Kazuyuki Murata, Yasuhiro Kuwahara, Hitoshi Ono, Tsutomu Mikami, Tomoko Suetake, Akio Kojima: Imaging apparatus having a counterfeiting prevention function. Matsushita Electric Industrial, Ratner & Prestia, March 26, 1996: US05502575 (15 worldwide citation)

An imaging apparatus comprising a counterfeiting prevention arrangement and reliably preventing counterfeit reproduction of currency, negotiable certificates, and other registered documents is provided by preventing modification or removal of the counterfeiting prevention arrangement. Modification o ...


9
Yasuhiro Kuwahara, Akio Kojima, Tatsumi Watanabe: Image processing method and image processing apparatus. Matsushita Electric Industrial, McDermott Will & Emery, June 24, 2003: US06583895 (13 worldwide citation)

The present invention relates to an image reading method and apparatus for regenerating on the image data storage image data read by an image reading apparatus such as a hand scanner. The object of the invention is to perform the mapping with high quality in a high speed without using a scanning fla ...


10
Haruo Yamashita, Akio Kojima, Toshiharu Kurosawa, Yasuhiro Kuwahara, Tatsumi Watanabe, Yusuke Monobe, Takeshi Ito: Visual processing device, visual processing method, visual processing program, intergrated circuit, display device, image-capturing device, and portable information terminal. Panasonic Corporation, Wenderoth Lind & Ponack L, December 28, 2010: US07860339 (12 worldwide citation)

The invention is a visual processing device having a hardware configuration that does not depend on achieving visual processing, wherein the visual processing device includes a spatial processing portion and a visual processing portion. The spatial processing portion performs predetermined processin ...