Patents by Inventor Hidehiko Kando
Hidehiko Kando 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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Patent number: 8395504Abstract: An IC label for prevention of forgery includes: a label substrate which has an adhesive agent for affixing the same to an object; a non-contact IC medium which is provided on the label substrate and has an IC chip for storing predetermined identification information and an antenna for wireless transmission of the identification information; and a security function portion which is provided on the label substrate and prevents replication.Type: GrantFiled: May 16, 2007Date of Patent: March 12, 2013Assignees: Toppan Printing Co., Ltd., Hitachi, Ltd.Inventors: Kozue Furuichi, Toru Endo, Manabu Suzuki, Hidehiko Kando
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Patent number: 8376236Abstract: A contactless integrated circuit (IC) label has an IC chip and is capable of exchanging data with an external reading device without contact. The contactless IC label includes: a transparent label base material; an optical variable device formed on a lower surface of the label base material; a conductive layer bonded to and formed on a lower surface of the optical variable device, and configured to function as an antenna of the IC chip; a connecting layer electrically connected to the IC chip; an insulating layer formed between the conductive layer and the connecting layer, and configured to electrically couple the conductive layer and the connecting layer; and an impedance adjusting unit formed on at least the connecting layer of the conductive layer and the connecting layer, and configured to adjust impedances of the conductive layer and the IC chip.Type: GrantFiled: November 13, 2009Date of Patent: February 19, 2013Assignees: Toppan Printing Co., Ltd., Hitachi, Ltd.Inventors: Tatsurou Ozawa, Hidemi Nakajima, Kozue Furuichi, Hidehiko Kando, Shin Kataoka
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Publication number: 20120099725Abstract: A portion of a digital signature value for authenticating the validity of ID information is also used as an ID so as to reduce the amount of data. This is achieved by using a digital signature scheme with a short signature length obtained by transforming a Schnorr signature, which is a typical example of a digital signature scheme.Type: ApplicationFiled: May 10, 2010Publication date: April 26, 2012Applicant: HITACHI, LTD.Inventors: Hisao Sakazaki, Keisuke Hakuta, Hidehiko Kando
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Publication number: 20110290892Abstract: A contactless integrated circuit (IC) label has an IC chip and is capable of exchanging data with an external reading device without contact. The contactless IC label includes: a transparent label base material; an optical variable device formed on a lower surface of the label base material; a conductive layer bonded to and formed on a lower surface of the optical variable device, and configured to function as an antenna of the IC chip; a connecting layer electrically connected to the IC chip; an insulating layer formed between the conductive layer and the connecting layer, and configured to electrically couple the conductive layer and the connecting layer; and an impedance adjusting unit formed on at least the connecting layer of the conductive layer and the connecting layer, and configured to adjust impedances of the conductive layer and the IC chip.Type: ApplicationFiled: November 13, 2009Publication date: December 1, 2011Applicants: Hitachi, Ltd., Toppan Printing Co., Ltd.Inventors: Tatsurou Ozawa, Hidemi Nakajima, Kozue Furuichi, Hidehiko Kando, Shin Kataoka
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Patent number: 8040777Abstract: An information recording method using a recording medium includes forming a plurality of recording pulses in accordance with both a reference waveform having been stored in the recording medium and data regarding a shifting value relying on material of the recording medium also having been stored in the recording medium in a table manner, and recording information included in the plurality of recording pulses to the recording medium. The recording information is arranged to be stored according to the material of the recording medium.Type: GrantFiled: June 14, 2007Date of Patent: October 18, 2011Assignee: Hitachi, Ltd.Inventors: Takeshi Maeda, Hirofumi Sukeda, Hiroyuki Minemura, Hidehiko Kando, Makoto Miyamoto
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Patent number: 8035522Abstract: A circuit chip having a loop-shaped antenna coil on a main surface and a tag sheet having an antenna pattern on a main surface are prepared, and the circuit chip is mounted on the main surface of the tag sheet so as not to place over the antenna pattern. The circuit chip is placed closely to the antenna pattern, and at least the half of the main surface is desirably faced against the antenna pattern. Thus, signals and/or power can be securely exchanged between the circuit chip (or antenna coil) and the antenna pattern. Therefore, a high-performance and rigid RFID tag can be obtained by roughly aligning the circuit chip and the tag sheet.Type: GrantFiled: September 19, 2008Date of Patent: October 11, 2011Assignee: Hitachi, Ltd.Inventors: Noriyuki Oroku, Naoya Kanda, Hidehiko Kando, Kouichi Uesaka
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Patent number: 7861938Abstract: The present invention provides a sheet-shaped material containing an RFID thread. The RFID thread comprises a strip-shaped film onto one side of which a semiconductor chip containing plural bits of memory and provided with an antenna wire is bonded. The strip-shaped film has plural openings formed therethrough except where the semiconductor chip is bonded. Since intertwining occurs between paper fibers via the openings, the RFID thread is strongly fixed in the paper.Type: GrantFiled: August 5, 2008Date of Patent: January 4, 2011Assignee: Hitachi, Ltd.Inventors: Noriyuki Oroku, Hidehiko Kando
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Patent number: 7835258Abstract: Conventionally, as in the case of switching between a DVD-R and a DVD-RAM, when the method of record mark arrangement in a track is changed, the physical format of the disk is also changed. This makes it difficult to ensure compatibility between pieces of data recorded by a plurality of different methods of record mark arrangement. According to the present invention, sector address data and block address data are recorded in each sector by using wobbling or deformation of a recording groove. Then, depending on which address is used, sector data structure is modified, thereby making it possible to select an address data detection and a data structure on a disk in a single physical format depending on the purpose.Type: GrantFiled: May 29, 2008Date of Patent: November 16, 2010Assignee: Hitachi, Ltd.Inventors: Hidehiko Kando, Harukazu Miyamoto, Takeshi Maeda
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Patent number: 7833841Abstract: The present invention is a method for manufacturing a semiconductor apparatus including a chip which is fabricated in large numbers on a wafer and has a plurality of information blocks. In the method, a unique information bit is written in a chip discrimination block of each chip within a shot, which is a segmented region of the wafer, by a fixed pattern method. In addition, an information bit uniquely given to each shot within the wafer is written by a mask shift method. Further, an information bit uniquely given to each wafer is written in a wafer discrimination block of the chip which is fabricated on the wafer by the mask shift method and mask combination method.Type: GrantFiled: August 7, 2008Date of Patent: November 16, 2010Assignee: Hitachi, Ltd.Inventors: Hidehiko Kando, Isao Sakama
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Publication number: 20100027399Abstract: An information recording medium and information recording method using an optical recording medium in which at least one recording pulse is formed for recording information on the optical recording medium, and the information is recorded to the optical recording medium by irradiating the at least one recording pulse on the optical recording medium. A duration of the at least one recording pulse is determined by a combination of (1) a length of M (n) of a mark being currently written, (2) a length S(n?1) of a space precedent to the mark, and (3) a length S(n+1) of a space subsequent to the mark.Type: ApplicationFiled: October 7, 2009Publication date: February 4, 2010Inventors: Takeshi Maeda, Hirofumi Sukeda, Hiroyuki Minemura, Hidehiko Kando, Makoto Miyamoto
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Publication number: 20090303044Abstract: An IC label for prevention of forgery includes: a label substrate which has an adhesive agent for affixing the same to an object; a non-contact IC medium which is provided on the label substrate and has an IC chip for storing predetermined identification information and an antenna for wireless transmission of the identification information; and a security function portion which is provided on the label substrate and prevents replication.Type: ApplicationFiled: May 16, 2007Publication date: December 10, 2009Applicants: TOPPAN PRINTING CO., LTD., HITACHI., LTD.Inventors: Kozue Furuichi, Toru Endo, Manabu Suzuki, Hidehiko Kando
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Patent number: 7609602Abstract: A method of generating a recording pulse train in accordance with a NRZI signal for recording information to a recording medium by irradiating a pulse chain including a first pulse, a middle pulse chain, a last pulse and a negative pulse following the last pulse, including adjusting an average power of the first pulse to a designated peak power level, adjusting an average power of the middle pulse chain to a designated peak power level, adjusting an average power of the last pulse to a designated power level, adjusting an average power of the negative pulse to a designated power level that is lower than the peak power level, and controlling a leading edge of the first pulse of the recording pulse train to start with a variable lapse of time from a leading edge of the NRZI signal, with a duration of the first pulse being fixed.Type: GrantFiled: August 2, 2005Date of Patent: October 27, 2009Assignee: Hitachi, Ltd.Inventors: Hidehiko Kando, Hiroyuki Minemura
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Publication number: 20090159881Abstract: The present invention is a method for manufacturing a semiconductor apparatus including a chip which is fabricated in large numbers on a wafer and has a plurality of information blocks. In the method, a unique information bit is written in a chip discrimination block of each chip 10 within a shot, which is a segmented region of the wafer, by a fixed pattern method. In addition, an information bit uniquely given to each shot within the wafer is written by a mask shift method. Further, an information bit uniquely given to each wafer is written in a wafer discrimination block of the chip 10 which is fabricated on the wafer by the mask shift method and mask combination method.Type: ApplicationFiled: August 7, 2008Publication date: June 25, 2009Inventors: Hidehiko KANDO, Isao Sakama
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Publication number: 20090090784Abstract: The present invention provides a sheet-shaped material containing an RFID thread. The RFID thread comprises a strip-shaped film onto one side of which a semiconductor chip containing plural bits of memory and provided with an antenna wire is bonded. The strip-shaped film has plural openings formed therethrough except where the semiconductor chip is bonded. Since intertwining occurs between paper fibers via the openings, the RFID thread is strongly fixed in the paper.Type: ApplicationFiled: August 5, 2008Publication date: April 9, 2009Inventors: Noriyuki Oroku, Hidehiko Kando
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Publication number: 20090079574Abstract: A circuit chip having a loop-shaped antenna coil on a main surface and a tag sheet having an antenna pattern on a main surface are prepared, and the circuit chip is mounted on the main surface of the tag sheet so as not to place over the antenna pattern. The circuit chip is placed closely to the antenna pattern, and at least the half of the main surface is desirably faced against the antenna pattern. Thus, signals and/or power can be securely exchanged between the circuit chip (or antenna coil) and the antenna pattern. Therefore, a high-performance and rigid RFID tag can be obtained by roughly aligning the circuit chip and the tag sheet.Type: ApplicationFiled: September 19, 2008Publication date: March 26, 2009Inventors: Noriyuki Oroku, Naoya Kanda, Hidehiko Kando, Kouichi Uesaka
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Publication number: 20080273446Abstract: Conventionally, as in the case of switching between a DVD-R and a DVD-RAM, when the method of record mark arrangement in a track is changed, the physical format of the disk is also changed. This makes it difficult to ensure compatibility between pieces of data recorded by a plurality of different methods of record mark arrangement. According to the present invention, sector address data and block address data are recorded in each sector by using wobbling or deformation of a recording groove. Then, depending on which address is used, sector data structure is modified, thereby making it possible to select an address data detection and a data structure on a disk in a single physical format depending on the purpose.Type: ApplicationFiled: May 29, 2008Publication date: November 6, 2008Inventors: Hidehiko Kando, Harukazu Miyamoto, Takeshi Maeda
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Patent number: 7385909Abstract: Conventionally, as in the case of switching between a DVD-R and a DVD-RAM, when the method of record mark arrangement in a track is changed, the physical format of the disk is also changed. This makes it difficult to ensure compatibility between pieces of data recorded by a plurality of different methods of record mark arrangement. According to the present invention, sector address data and block address data are recorded in each sector by using wobbling or deformation of a recording groove. Then, depending on which address is used, sector data structure is modified, thereby making it possible to select an address data detection and a structure on a disk in a single physical format depending on the purpose.Type: GrantFiled: January 4, 2006Date of Patent: June 10, 2008Assignee: Hitachi, Ltd.Inventors: Hidehiko Kando, Harukazu Miyamoto, Takeshi Maeda
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Patent number: 7352675Abstract: An information recording method using an optical recording medium including the steps of forming a plurality of recording pulses to irradiate the optical recording medium and recording information to the optical recording medium by irradiating the recording pulses on the optical recording medium. A leading edge of a first recording pulse of the recording pulses shifts at a shifting value, and the shifting value is determined by a combination of a length of M(n) of a mark being currently written and a length s(n?1) of a space precedent to the mark.Type: GrantFiled: July 8, 2005Date of Patent: April 1, 2008Assignee: Hitachi, Ltd.Inventors: Takeshi Maeda, Hirofumi Sukeda, Hiroyuki Minemura, Hidehiko Kando, Makoto Miyamoto
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Patent number: 7349318Abstract: An information recording apparatus using an optical recording medium includes a light source to irradiate a light beam to the optical recording medium and a pulse former for forming a plurality of recording pulses of the light beam. A leading edge of a first recording pulse of the recording pulses shifts at a shifting value, and the shifting value is determined by a combination of a length of M(n) of a mark being currently written and a length s(n?1) of a space precedent to the mark.Type: GrantFiled: July 8, 2005Date of Patent: March 25, 2008Assignee: Hitachi, Ltd.Inventors: Takeshi Maeda, Hirofumi Sukeda, Hiroyuki Minemura, Hidehiko Kando, Makoto Miyamoto
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Patent number: 7349317Abstract: An information recording method using an optical recording medium includes the steps of forming a plurality of recording pulses to irradiate the optical recording medium and recording information to the optical recording medium by irradiating the recording pulses on the optical recording medium. At least a leading edge of a first recording pulse and a trailing edge of a last recording pulse of the recording pulses shift at a shifting value, wherein the shifting value is determined by combinations of a length of M(n) of a mark being currently written and at least one of a length s(n?1) of a space precedent to the mark and a length s(n+1) of a space subsequent to the mark.Type: GrantFiled: July 8, 2005Date of Patent: March 25, 2008Assignee: Hitachi, Ltd.Inventors: Takeshi Maeda, Hirofumi Sukeda, Hiroyuki Minemura, Hidehiko Kando, Makoto Miyamoto