Patents by Inventor Takashi Totsuka
Takashi Totsuka 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: 7296754Abstract: An IC card module includes first external connecting terminals and second external connecting terminals both exposed to one surface of a card substrate, a microcomputer connected to the first external connecting terminals, a memory controller connected to the second external connecting terminals, and a volatile memory connected to the memory controller. The shape of the card substrate and the layout of the first external connecting terminals are based on a standard of plug-in UICC of ETSI TS 102 221 V4.4.0 (2001-10). The second external connecting terminals are disposed outside the minimum range of the terminal layout based on the standard for the first external connecting terminals. The first and second external connecting terminals include signal terminals electrically separated from one another.Type: GrantFiled: May 10, 2005Date of Patent: November 20, 2007Assignee: Renesas Technology Corp.Inventors: Hirotaka Nishizawa, Takashi Totsuka, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama
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Patent number: 7291903Abstract: This invention is to provide an ultra-miniaturized, thin-sized memory card provided with a mechanism for preventing a wrong insertion to a memory card slot. A multi-function memory card is composed of a card body and a cap for housing the card body. The card body is made of mold resin that encapsulates plural semiconductor chips mounted on a main surface of a wiring substrate. The card body is housed into the cap with the back face of the wiring substrate facing outward. Guide channels are provided at both side faces of the cap for preventing that the card is inserted upside down. Further, a convex section is provided at the trailing edge of the cap for preventing that the card is inserted in the wrong direction.Type: GrantFiled: April 25, 2005Date of Patent: November 6, 2007Assignee: Renesas Technology Corp.Inventors: Hirotaka Nishizawa, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama, Takashi Totsuka
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Patent number: 7267287Abstract: An IC card capable of reinforcing the prevention of the electrostatic damage without causing a rise in the cost of a semiconductor integrated circuit chip. The semiconductor integrated circuit chip (2) is mounted on a card substrate (1), and plural connection terminals (3) are exposed. The connection terminals are connected to predetermined external terminals (4) of the semiconductor integrated circuit chip, first overvoltage protection elements (7, 8, 9) connected to the external terminals are integrated in the semiconductor integrated circuit chip, and second overvoltage protection elements such as surface-mount type varistors (11) connected to the connection terminals are mounted on the card substrate. The varistors are variable resistor elements having a current tolerating ability greater than that of the first overvoltage protection elements.Type: GrantFiled: January 2, 2007Date of Patent: September 11, 2007Assignee: Renesas Technology Corp.Inventors: Hirotaka Nishizawa, Yosuke Yukawa, Takashi Totsuka
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Patent number: 7224052Abstract: An IC card capable of reinforcing the prevention of the electrostatic damage without causing a rise in the cost of a semiconductor integrated circuit chip. The semiconductor integrated circuit chip (2) is mounted on a card substrate (1), and plural connection terminals (3) are exposed. The connection terminals are connected to predetermined external terminals (4) of the semiconductor integrated circuit chip, first overvoltage protection elements (7, 8, 9) connected to the external terminals are integrated in the semiconductor integrated circuit chip, and second overvoltage protection elements such as surface-mount type varistors (11) connected to the connection terminals are mounted on the card substrate. The varistors are variable resistor elements having a current tolerating ability greater than that of the first overvoltage protection elements.Type: GrantFiled: April 8, 2003Date of Patent: May 29, 2007Assignee: Renesas Technology Corp.Inventors: Hirotaka Nishizawa, Yosuke Yukawa, Takashi Totsuka
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Publication number: 20070102530Abstract: An IC card capable of reinforcing the prevention of the electrostatic damage without causing a rise in the cost of a semiconductor integrated circuit chip. The semiconductor integrated circuit chip (2) is mounted on a card substrate (1), and plural connection terminals (3) are exposed. The connection terminals are connected to predetermined external terminals (4) of the semiconductor integrated circuit chip, first overvoltage protection elements (7, 8, 9) connected to the external terminals are integrated in the semiconductor integrated circuit chip, and second overvoltage protection elements such as surface-mount type varistors (11) connected to the connection terminals are mounted on the card substrate. The varistors are variable resistor elements having a current tolerating ability greater than that of the first overvoltage protection elements.Type: ApplicationFiled: January 2, 2007Publication date: May 10, 2007Inventors: Hirotaka NISHIZAWA, Yosuke Yukawa, Takashi Totsuka
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Publication number: 20070102798Abstract: An IC card capable of reinforcing the prevention of the electrostatic damage without causing a rise in the cost of a semiconductor integrated circuit chip. The semiconductor integrated circuit chip (2) is mounted on a card substrate (1), and plural connection terminals (3) are exposed. The connection terminals are connected to predetermined external terminals (4) of the semiconductor integrated circuit chip, first overvoltage protection elements (7, 8, 9) connected to the external terminals are integrated in the semiconductor integrated circuit chip, and second overvoltage protection elements such as surface-mount type varistors (11) connected to the connection terminals are mounted on the card substrate. The varistors are variable resistor elements having a current tolerating ability greater than that of the first overvoltage protection elements.Type: ApplicationFiled: January 2, 2007Publication date: May 10, 2007Inventors: Hirotaka Nishizawa, Yosuke Yukawa, Takashi Totsuka
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Publication number: 20070102799Abstract: An IC card capable of reinforcing the prevention of the electrostatic damage without causing a rise in the cost of a semiconductor integrated circuit chip. The semiconductor integrated circuit chip (2) is mounted on a card substrate (1), and plural connection terminals (3) are exposed. The connection terminals are connected to predetermined external terminals (4) of the semiconductor integrated circuit chip, first overvoltage protection elements (7, 8, 9) connected to the external terminals are integrated in the semiconductor integrated circuit chip, and second overvoltage protection elements such as surface-mount type varistors (11) connected to the connection terminals are mounted on the card substrate. The varistors are variable resistor elements having a current tolerating ability greater than that of the first overvoltage protection elements.Type: ApplicationFiled: January 2, 2007Publication date: May 10, 2007Inventors: Hirotaka NISHIZAWA, Yosuke Yukawa, Takashi Totsuka
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Publication number: 20070023530Abstract: A card tray to be mounted to a memory card can make the memory card mountable in a card slot for memory cards conforming to standards different from those to which the memory card conforms. The card tray has a main body and a recessed mount section. The recessed mount section is formed such that the holder of a second memory card can be mounted to one of the major surfaces of the main body. A memory-card-mounted body is produced when the second memory card is mounted to the recessed mount section. The card tray is configured such that, when the first memory card is placed on the memory-card-mounted body with the left and right edges thereof aligned with each other, the contact pieces of the first memory card and the contact pieces of the second memory card have longitudinally overlapping parts and transversally overlapping parts as viewed from above.Type: ApplicationFiled: July 17, 2006Publication date: February 1, 2007Inventors: Yoshitaka Aoki, Keiichi Tsutsui, Hirotaka Nishizawa, Takashi Totsuka
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Patent number: 7162645Abstract: A storage device includes a tamper-resistant module and a flash memory. In correspondence with a command, a CPU inside the tamper-resistant module judges the security of data received from the outside, then recording the data as follows: High-security and small-capacity data is recorded into a memory inside the tamper-resistant module. High-security and large-capacity data is encrypted, then being recorded into the flash memory. Low-security data is recorded as it is into the flash memory. This recording method permits large-capacity data to be stored while ensuring a security (i.e., a security level) corresponding thereto.Type: GrantFiled: February 5, 2002Date of Patent: January 9, 2007Assignee: Renesas Technology Corp.Inventors: Shinya Iguchi, Takashi Tsunehiro, Motoyasu Tsunoda, Haruji Ishihara, Nagamasa Mizushima, Takashi Totsuka
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Patent number: 7100055Abstract: A storage medium includes a storage device for storing information, information required for encryption and encrypted information, and an I/F device for inputting and outputting information, information required for coding and store encrypted information in a storage device or from an external apparatus other than the storage device, and an encoding device for coding of information and decoding of encoded information. When outputting information stored inside the storage device, information is encoded using encryption key information, and along with obtaining the encoded information and obtaining the encoded encryption key information by using another encryption key. Both the encoded information and encoded encryption key information are output so that decoding the information without the storage medium is impossible.Type: GrantFiled: September 4, 2001Date of Patent: August 29, 2006Assignee: Hitachi, Ltd.Inventors: Toru Owada, Jun Kitahara, Takeshi Asahi, Takayuki Tamura, Nagamasa Mizushima, Ikuya Kawasaki, Takashi Totsuka
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Patent number: 7079144Abstract: A user gives, as input, two curves at a start time and at an end time and reference correspondence points with respect to the respective curves. Then, a pursuit operation of pursuing a reference correspondence point is carried out with respect to picture images successive in the time axis direction. As a result, positions of reference correspondence points at respective intermediate stages can be determined. Then, interpolation of the shape is carried out. Then, the determined interpolated shape is deformed in correspondence with the determined reference correspondence point. Accordingly, even in the case where a contour shape does not linearly move, it is possible to precisely pursue correspondence points on the contour. Thus, a contour shape with higher precision can be prepared.Type: GrantFiled: February 25, 2000Date of Patent: July 18, 2006Assignee: Sony CorporationInventors: Shigehiro Shimada, Junichi Tsukamoto, Takashi Totsuka
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Patent number: 7054990Abstract: The external storage device according to the present invention which uses a non-volatile semiconductor memory such as a flash memory is provided with plural areas which store user data, and restricts access to the user data from a host computer and also dynamically changes an area an access to which is to be restricted. Accordingly, the ease of use of the external storage device for the host computer is improved. Specifically, the interior of the flash memory is divided into a normal area not protected by a password or the like and a protected area protected by a password or the like. A microprocessor controls accesses to the normal area and the protected area in accordance with a command from the host computer. In addition, the host computer can access the protected area after passing through authentication using a password. Moreover, the host computer changes information indicative of the location of the protected area, thereby dynamically changing the protection area.Type: GrantFiled: August 10, 2000Date of Patent: May 30, 2006Assignee: Renesas Technology Corp.Inventors: Takayuki Tamura, Jun Kitahara, Toru Owada, Shinichi Sawamura, Takeshi Asahi, Nagamasa Mizushima, Takashi Totsuka, Yasushi Akao
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Publication number: 20060097060Abstract: In a memory card with a newly-added module for performing data communication, data communication is stably performed without receiving a noise effect. As an embodiment of the present invention, a memory card 100 has a thin-plate-shaped holding member 20, a memory section 24 provided as buried in the holding member 20, plural first connection pieces 2-10 connected to the memory section 24, a data communication section 26 provided as buried in the holding member 20, and two connection pieces 11, 12 connected to the data communication section 26. The two second connection pieces 11, 12 are disposed at the end of a row part R1 on which only the plural first connection pieces 2-10 are aligned. One first connection piece 10 positioned at the end of the row part R1 is a ground terminal. That is to say, in the plural first connection pieces 2-10, the first connection piece 10 adjacent to the second connection piece 11 is a ground terminal.Type: ApplicationFiled: October 21, 2005Publication date: May 11, 2006Inventors: Yoshitaka Aoki, Hideaki Bando, Keiichi Tsutsui, Hirotaka Nishizawa, Kenji Ohsawa, Takashi Totsuka
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Publication number: 20050253239Abstract: This invention is to provide an ultra-miniaturized, thin-sized memory card provided with a mechanism for preventing a wrong insertion to a memory card slot. A multi-function memory card is composed of a card body and a cap for housing the card body. The card body is made of mold resin that encapsulates plural semiconductor chips mounted on a main surface of a wiring substrate. The card body is housed into the cap with the back face of the wiring substrate facing outward. Guide channels are provided at both side faces of the cap for preventing that the card is inserted upside down. Further, a convex section is provided at the trailing edge of the cap for preventing that the card is inserted in the wrong direction.Type: ApplicationFiled: April 25, 2005Publication date: November 17, 2005Inventors: Hirotaka Nishizawa, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama, Takashi Totsuka
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Publication number: 20050252978Abstract: To realize compatibility with an SIM card and adaptation to a high-speed memory access in an IC card module having a microcomputer and a memory card controller. An IC card module includes a plurality of first external connecting terminals and a plurality of second external connecting terminals both exposed to one surface of a card substrate, a microcomputer connected to the first external connecting terminals, a memory controller connected to the second external connecting terminals, and a volatile memory connected to the memory controller. The shape of the card substrate and the layout of the first external connecting terminals are based on a standard of plug-in UICC of ETSI TS 102 221 V4.4.0 (2001-10) or have compatibility. The second external connecting terminals are disposed outside the minimum range of the terminal layout based on the standard for the first external connecting terminals.Type: ApplicationFiled: May 10, 2005Publication date: November 17, 2005Inventors: Hirotaka Nishizawa, Takashi Totsuka, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama
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Publication number: 20050251411Abstract: A content sharing system and content importance level judging method are provided. The content sharing system provides an importance level of arbitrary content is individually judged with respect to users and a notice message valuable for a user is appropriately notified to a client or the outside tool. Further, an access user is able to set the disclosure level of access record of a user accessed the content. In the content sharing system, an importance level of content of multimedia data on a server shared with clients of a plurality of users is judged, in which the importance level of the content with respect to each user is individually calculated by interpreting existing data or a user environment, the client condition is judged, a notice rule setting is changed in accordance with the client condition or an instruction from the client, and a notice message is issued to an appropriate address based on the calculated importance level and a notice rule of the content.Type: ApplicationFiled: May 19, 2005Publication date: November 10, 2005Inventors: Shinya Ishii, Yuichi Abe, Yoshihiro Manabe, Takao Shimada, Norikazu Hiraki, Kenichiro Nakamura, Ryoichi Imaizumi, Takashi Totsuka
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Patent number: D552098Type: GrantFiled: November 18, 2005Date of Patent: October 2, 2007Assignees: Renesas Technology Corporation, Sony Kabushiki KaishaInventors: Hirotaka Nishizawa, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama, Takashi Totsuka, Yoshitaka Aoki, Keiichi Tsutsui
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Patent number: D552099Type: GrantFiled: November 18, 2005Date of Patent: October 2, 2007Assignees: Renesas Technology Corporation, Sony Kabushiki KaishaInventors: Hirotaka Nishizawa, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama, Takashi Totsuka, Yoshitaka Aoki, Keiichi Tsutsui
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Patent number: D552612Type: GrantFiled: November 18, 2005Date of Patent: October 9, 2007Assignee: Renesas Technology CorporationInventors: Hirotaka Nishizawa, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama, Takashi Totsuka
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Patent number: D556764Type: GrantFiled: May 22, 2007Date of Patent: December 4, 2007Assignees: Renesas Technology Corporation, Sony Kabushiki KaishaInventors: Hirotaka Nishizawa, Kenji Osawa, Junichiro Osako, Tamaki Wada, Michiaki Sugiyama, Takashi Totsuka, Yoshitaka Aoki, Keiichi Tsutsui