Patents by Inventor Fumiya Ohmi
Fumiya Ohmi 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: 8431207Abstract: The present invention provides an optical recording material allows for obtaining excellent recording signal properties even at high-speed recording and is excellent in durability in both a single-sided single layer optical recording medium and a single-sided two-layer optical recording medium having a first recording layer and a second recording layer. The optical recording material contains a cyanine compound having a specific structure and a squarylium compound as dyes for optical recording layers.Type: GrantFiled: January 10, 2008Date of Patent: April 30, 2013Assignee: Ricoh Company, Ltd.Inventors: Tohru Yashiro, Fumiya Ohmi, Satoshi Mizukami, Yuki Nakamura, Masahiro Hayashi, Ippei Matsumoto
-
Publication number: 20100118680Abstract: The present invention provides an optical recording material allows for obtaining excellent recording signal properties even at high-speed recording and is excellent in durability in both a single-sided single layer optical recording medium and a single-sided two-layer optical recording medium having a first recording layer and a second recording layer. The optical recording material contains a cyanine compound having a specific structure and a squarylium compound as dyes for optical recording layers.Type: ApplicationFiled: January 10, 2008Publication date: May 13, 2010Applicant: Ricoh Company Ltd.Inventors: Tohru Yashiro, Fumiya Ohmi, Satoshi Mizukami, Yuki Nakamura, Masahiro Hayashi, Ippei Matsumoto
-
Patent number: 7512052Abstract: A phase-change optical disc formatting device which formats a phase-change optical disc so that signal characteristics of an area in which at least one of a file structure and application data is to be recorded are substantially equal to signal characteristics of a format area. A phase-change optical disc formatting method including: formatting a phase-change optical disc so that signal characteristics of an area in which at least one of a file structure and application data is to be recorded are substantially equal to signal characteristics of a format area. A phase-change optical disc formatted such that signal characteristics of an area of the phase-change optical disc in which at least one of a file structure and application data is to be recorded are substantially equal to signal characteristics of a format area of the phase-change optical disc.Type: GrantFiled: March 14, 2002Date of Patent: March 31, 2009Assignee: Ricoh Company, Ltd.Inventor: Fumiya Ohmi
-
Patent number: 7488701Abstract: An object of the present invention is to provide an optical information recording medium by which the getting thereof in and out of a reproducing apparatus and the reproducing of recoding data can be stably and reliably performed and the recording content can be visually confirmed, and which has the reversible display function of performing at least one of the recording, erasing and rewriting of the display which is excellent in the uniformity of the image, easily, with a good appearance and without damaging the optical information recording medium; a manufacturing method of the above-noted optical information recording medium; and an image processing method using the above-noted optical information recording medium.Type: GrantFiled: March 28, 2005Date of Patent: February 10, 2009Assignee: Ricoh Company, Ltd.Inventors: Satoshi Mizukami, Yoshihiko Hotta, Fumiya Ohmi
-
Patent number: 7447138Abstract: A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light may be moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initialization can be limited to those areas detected to be outside of the predetermined parameters.Type: GrantFiled: November 4, 2005Date of Patent: November 4, 2008Assignee: Ricoh Company, Ltd.Inventors: Kyohji Hattori, Kenichi Aihara, Katsuyuki Yamada, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko, Yuki Nakamura, Hiroko Iwasaki
-
Patent number: 7327649Abstract: A method for formatting a phase-change optical disk, using an apparatus for formatting phase-change optical disk, which apparatus includes (a) a drive control substrate on which a CPU for controlling an optical disk drive, a ROM for storing data, and an interface are mounted, and (b) an optical disk drive, is provided, and the method is carried out conducting power calibration a plurality of times to obtain a plurality of recording powers corresponding to the number of the power calibrations conducted, calculating an average recording power from the plurality of recording powers, multiplying the average recording power by a predetermined coefficient to obtain a recording power for formatting, and formatting a phase-change optical disk in accordance with the recording power for formatting. The phase-change optical disk formatted by this method is also provided.Type: GrantFiled: September 12, 2003Date of Patent: February 5, 2008Assignee: Ricoh Company, Ltd.Inventor: Fumiya Ohmi
-
Publication number: 20060120265Abstract: An object of the present invention is to provide an optical information recording medium by which the getting thereof in and out of a reproducing apparatus and the reproducing of recoding data can be stably and reliably performed and the recording content can be visually confirmed, and which has the reversible display function of performing at least one of the recording, erasing and rewriting of the display which is excellent in the uniformity of the image, easily, with a good appearance and without damaging the optical information recording medium; a manufacturing method of the above-noted optical information recording medium; and an image processing method using the above-noted optical information recording medium.Type: ApplicationFiled: March 28, 2005Publication date: June 8, 2006Inventors: Satoshi Mizukami, Yoshihiko Hotta, Fumiya Ohmi
-
Publication number: 20060067183Abstract: A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light may be moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initialization can be limited to those areas detected to be outside of the predetermined parameters.Type: ApplicationFiled: November 4, 2005Publication date: March 30, 2006Inventors: Kyohji Hattori, Kenichi Aihara, Katsuyuki Yamada, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko, Yuki Nakamura, Hiroko Iwasaki
-
Patent number: 6990053Abstract: A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light may be moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initialization can be limited to those areas detected to be outside of the predetermined parameters.Type: GrantFiled: April 13, 2004Date of Patent: January 24, 2006Assignee: Ricoh Company, Ltd.Inventors: Kyohji Hattori, Kenichi Aihara, Katsuyuki Yamada, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko, Yuki Nakamura, Hiroko Iwasaki
-
Publication number: 20040190394Abstract: A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light may be moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initialization can be limited to those areas detected to be outside of the predetermined parameters.Type: ApplicationFiled: April 13, 2004Publication date: September 30, 2004Inventors: Kyohji Hattori, Kenichi Aihara, Katsuyuki Yamada, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko, Yuki Nakamura, Hiroko Iwasaki
-
Patent number: 6775213Abstract: A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light may be moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initialization can be limited to those areas detected to be outside of the predetermined parameters.Type: GrantFiled: February 25, 2003Date of Patent: August 10, 2004Assignee: Ricoh Company, Ltd.Inventors: Kyohji Hattori, Kenichi Aihara, Katsuyuki Yamada, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko, Yuki Nakamura, Hiroko Iwasaki
-
Patent number: 6760291Abstract: A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light may be moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initialization can be limited to those areas detected to be outside of the predetermined parameters.Type: GrantFiled: February 25, 2003Date of Patent: July 6, 2004Assignee: Ricoh Company, Ltd.Inventors: Kyohji Hattori, Kenichi Aihara, Katsuyuki Yamada, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko, Yuki Nakamura, Hiroko Iwasaki
-
Method of formatting phase-change optical disk and phase-change optical disk formatted by the method
Publication number: 20040047257Abstract: A method for formatting a phase-change optical disk, using an apparatus for formatting phase-change optical disk, which apparatus includes (a) a drive control substrate on which a CPU for controlling an optical disk drive, a ROM for storing data, and an interface are mounted, and (b) an optical disk drive, is provided, and the method is carried out conducting power calibration a plurality of times to obtain a plurality of recording powers corresponding to the number of the power calibrations conducted, calculating an average recording power from the plurality of recording powers, multiplying the average recording power by a predetermined coefficient to obtain a recording power for formatting, and formatting a phase-change optical disk in accordance with the recording power for formatting. The phase-change optical disk formatted by this method is also provided.Type: ApplicationFiled: September 12, 2003Publication date: March 11, 2004Inventor: Fumiya Ohmi -
Publication number: 20030152003Abstract: A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light may be moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initialization can be limited to those areas detected to be outside of the predetermined parameters.Type: ApplicationFiled: February 25, 2003Publication date: August 14, 2003Inventors: Kyohji Hattori, Kenichi Aihara, Katsuyuki Yamada, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko, Yuki Nakamura, Hiroko Iwasaki
-
Publication number: 20030152002Abstract: A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light may be moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initialization can be limited to those areas detected to be outside of the predetermined parameters.Type: ApplicationFiled: February 25, 2003Publication date: August 14, 2003Inventors: Kyohji Hattori, Kenichi Aihara, Katsuyuki Yamada, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko, Yuki Nakamura, Hiroko Iwasaki
-
Patent number: 6580672Abstract: A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light maybe moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initialization can be limited to those areas detected to be outside of the predetermined parameters.Type: GrantFiled: February 21, 2002Date of Patent: June 17, 2003Assignee: Ricoh Company, Ltd.Inventors: Kyohji Hattori, Kenichi Aihara, Katsuyuki Yamada, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko, Yuki Nakamura, Hiroko Iwasaki
-
Publication number: 20020172123Abstract: A phase-change optical disc formatting device which formats a phase-change optical disc so that signal characteristics of an area in which at least one of a file structure and application data is to be recorded are substantially equal to signal characteristics of a format area. A phase-change optical disc formatting method including: formatting a phase-change optical disc so that signal characteristics of an area in which at least one of a file structure and application data is to be recorded are substantially equal to signal characteristics of a format area. A phase-change optical disc formatted such that signal characteristics of an area of the phase-change optical disc in which at least one of a file structure and application data is to be recorded are substantially equal to signal characteristics of a format area of the phasechange optical disc.Type: ApplicationFiled: March 14, 2002Publication date: November 21, 2002Inventor: Fumiya Ohmi
-
Patent number: 6445669Abstract: A method of initializing a phase-change optical information recording medium is provided, using an optical system incorporating a semiconductor laser device. The laser device is characterized by a specified spatial power distribution. In a spatial distribution of the laser power focused on the recording medium, in the direction perpendicular to guide tracks the laser device preferably has less average smaller in both end regions of the spatial distribution, which have each 10% of the width at half maximum of the distribution, than the average in the center region of the full width at half maximum of the distribution.Type: GrantFiled: December 23, 1999Date of Patent: September 3, 2002Assignee: Ricoh Company, Ltd.Inventors: Kyohji Hattori, Fumiya Ohmi, Kenichi Aihara, Katsuyuki Yamada, Yuki Nakamura, Eiji Noda, Michihisa Takahashi, Yujiro Kaneko, Yukio Ide
-
Publication number: 20020093897Abstract: A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light may be moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initalization can be limited to those areas detected to be outside of the predetermined parameters.Type: ApplicationFiled: February 21, 2002Publication date: July 18, 2002Inventors: Kyohji Hattori, Kenichi Aihara, Katsuyuki Yamada, Fumiya Ohmi, Eiji Noda, Yujiro Kaneko, Yuki Nakamura, Hiroko Iwasaki
-
Patent number: RE39901Abstract: A method of initializing a phase-change optical information recording medium is provided, using an optical system incorporating a semiconductor laser device. The laser device is characterized by a specified spatial power distribution. In a spatial distribution of the laser power focused on the recording medium, in the direction perpendicular to guide tracks the laser device preferably has less average smaller in both end regions of the spatial distribution, which have each 10% of the width at half maximum of the distribution, than the average in the center region of the full width at half maximum of the distribution.Type: GrantFiled: April 14, 2004Date of Patent: October 30, 2007Assignee: Ricoh Company, Ltd.Inventors: Kyohji Hattori, Fumiya Ohmi, Kenichi Aihara, Katsuyuki Yamada, Yuki Nakamura, Eiji Noda, Michihisa Takahashi, Yujiro Kaneko, Yukio Ide