1
Yoshihiro Hori, Miwa Kanamori, Megumi Makino, Toshiaki Hioki: Information delivery system and server. Sanyo Electric, Armstrong Kratz Quintos Hanson & Brooks, September 14, 2004: US06792280 (87 worldwide citation)

An information delivery system includes a delivery server and two cellular phones. For example, when one cellular phone accesses the delivery server and requests a delivery of content data such as music data, desired music data is delivered from the delivery server onto the one cellular phone. Meanw ...


2
Yoshihiro Hori, Toshiaki Hioki, Miwa Kanamori, Takatoshi Yoshikawa, Hiroshi Takemura, Takayuki Hasebe, Takahisa Hatakeyama, Tadaaki Tonegawa, Takeaki Anazawa: Device for reproducing data. Sanyo Electric, Fujitsu, Westerman Hattori Daniels & Adrian, May 24, 2005: US06898708 (51 worldwide citation)

A cellular phone (100) stores encrypted content data and encrypted license key distributed thereto in a memory card (110). The cellular phone (100) and the memory card (110) collectively perform a part of mutual authentication processing upon power-on. The encrypted license key (Kc) read from the me ...


3
Miwa Kanamori, Yuichi Kanai, Seiya Ota, Toshiaki Hioki, Yoshihiro Hori, Megumi Makino, Masaya Okumura, Jiro Yokoyama, Tohru Kawabata: Portable telephone set. Sanyo Electric, McDermott Will & Emery, December 9, 2003: US06662022 (38 worldwide citation)

A portable telephone set capable of recognizing a call during music replay is disclosed. This portable telephone set comprises talking means and music replay means, and posts a call when receiving the same during music replay by the music replay means. Thus, the call can be recognized during the mus ...


4
Masayuki Hatanaka, Jun Kamada, Takahisa Hatakeyama, Takayuki Hasebe, Seigou Kotani, Shigeki Furuta, Taizou Kinoshita, Takeaki Anazawa, Toshiaki Hioki, Miwa Kanamori, Yoshihiro Hori: Data distribution system as well as data supply device terminal device and recording device for the same. Fujitsu, Hitachi, Sanyo Electric, Westerman Hattori Daniels & Adrian, February 20, 2007: US07181629 (25 worldwide citation)

A memory card performs decryption processing to extract a session key from data applied from a server to a data bus over a cellular phone network. An encryption processing unit encrypts a public encryption key of memory card based on a session key, and applies the same to the server via data bus. A ...


5
Masayuki Hatanaka, Jun Kamada, Takahisa Hatakeyama, Takayuki Hasebe, Seigou Kotani, Shigeki Furuta, Takeaki Anazawa, Tadaaki Tonegawa, Toshiaki Hioki, Miwa Kanamori, Yoshihiro Hori: Memory card. Fujitsu, Nippon Columbia, Hitachi, Sanyo Electric, Westerman Hattori Daniels & Adrian, February 14, 2006: US06999948 (25 worldwide citation)

A memory card 110 extracts a session key Ks from the data applied onto a data bus BS3 by carrying out a decryption process. An encryption processing unit 1406 encrypts a public encryption key KPcard(1) of memory card 110 based on session key Ks, and applies the encrypted key to a server via data bus ...


6
Yoshihiro Hori, Toshiaki Hioki, Miwa Kanamori, Takatoshi Yoshikawa, Hiroshi Takemura, Masataka Takahashi, Takayuki Hasebe, Shigeki Furuta, Takahisa Hatakeyama, Tadaaki Tonegawa, Takeaki Anazawa: Data distribution system and recording device and data provision device used therefor. Sanyo Electric, Fujitsu, Hitachi, Westerman Hattori Daniels & Adrian L, May 15, 2007: US07219227 (24 worldwide citation)

A license server (10) includes a CRL database (306) holding a revocation list recording therein classes predetermined corresponding respectively to a memory device, such as a memory card, and a content reproduction circuit, such as a cellular phone, that are subjected to revocation of distributing, ...


7
Yoshihiro Hori, Toshiaki Hioki, Miwa Kanamori, Takatoshi Yoshikawa, Hiroshi Takemura, Masataka Takahashi, Takayuki Hasebe, Shigeki Furuta, Takahisa Hatakeyama, Tadaaki Tonegawa, Takeaki Anazawa: Memory card and data distribution system using it. Sanyo Electric, Fujitsu, Hitachi, Westerman Hattori Daniels & Adrian, March 4, 2008: US07340055 (17 worldwide citation)

A memory card (110) conducts an authentication process with a server based on data stored in an authentication data hold unit (1400). The memory card (110) extracts a first session key (Ks1) from a server by a decryption process and a transaction ID from the data applied on a data bus (BS3). The mem ...


8
Masayuki Hatanaka, Jun Kamada, Takahisa Hatakeyama, Takayuki Hasebe, Seigou Kotani, Shigeki Furuta, Takeaki Anazawa, Toshiaki Hioki, Miwa Kanamori, Yoshihiro Hori: Data reproduction apparatus and data reproduction module. Fujitsu, Sanyo Electric, Westerman Hattori Daniels & Adrian, April 10, 2007: US07203312 (12 worldwide citation)

A cellular phone has distributed encrypted content data and an encrypted content key stored in a memory. The encrypted content key data read out from the memory is decrypted by a decryption processing unit using key data Kp stored in a Kp hold unit, and then applied to a audio reproduction module. A ...


9
Masayuki Hatanaka, Jun Kamada, Takahisa Hatakeyama, Takayuki Hasebe, Seigou Kotani, Tadaaki Tonegawa, Takeaki Anazawa, Toshiaki Hioki, Miwa Kanamori, Yoshihiro Hori: Recording device. Fujitsu, Hitachi, Sanyo Electric, Westerman Hattori Daniels & Adrian, June 3, 2008: US07383446 (11 worldwide citation)

A memory card includes a user ID hold unit holding user ID data provided to identify the user of the memory card, a first protection information memory unit holding first protection information restricting access to memory card, and a second protection information memory unit holding second protecti ...


10
Masayuki Hatanaka, Jun Kamada, Takahisa Hatakeyama, Takayuki Hasebe, Seigou Kotani, Takeaki Anazawa, Tadaaki Tonegawa, Junji Nakata, Toshiaki Hioki, Miwa Kanamori, Yoshihiro Hori: Data distributing system and recording medium used for it. Fujitsu, Sanyo Electric, Westerman Hattori Daniels & Adrian, November 1, 2011: US08051302 (6 worldwide citation)

Encrypted music data and additional information necessary for accessing a server (30) are copied from a CD-ROM (200) onto a memory card (110). The memory card (110) receives via a digital portable phone network the distribution of a contents decoding key (Kc) necessary for decoding encrypted music d ...