1
Kitaura Keiko, Fujita Ichirou, Yamato Yorichika, Suzuki Chika: Electronic coupon system. Hitachi Maxell, February 6, 2002: EP1178421-A2 (22 worldwide citation)

An easy to use, secure electronic coupon system provides electronic coupons to users having a cellular phone 5 with a display device. A coupon data storage device 23 stores information relating to the electronic coupons. A bar code processor 14 generates bar code data based at least on the electroni ...


2
Kitaura Keiko, Fujita Ichiro, Matsuoka Kenji: Music information retrieving device to be functioned as www server on the internet. Hitachi Maxell, July 27, 2001: JP2001-202368 (17 worldwide citation)

PROBLEM TO BE SOLVED: To provide a music information retrieving device, with which a user can easily access desired music out of music distributed by plural Internet radio stations. SOLUTION: Concerning the music information retrieving device to be functioned as WWW server on that internet, this dev ...


3
Kitaura Keiko, Fujita Ichiro, Yamato Shirochika, Suzuki Chika: Electronic coupon system. Hitachi Maxell, April 19, 2002: JP2002-117313 (6 worldwide citation)

PROBLEM TO BE SOLVED: To provide a safe electronic coupon system of good usability.SOLUTION: This electronic coupon system offering an electronic coupon to a user carrying a cellular phone 5 having a display device is provided with a coupon information storage part 23 storing information on the elec ...


4
Kitaura Keiko, Fujita Ichiro, Yamato Shirochika, Suzuki Chika: Method for providing electronic coupon. Hitachi Maxell, July 5, 2002: JP2002-189963 (5 worldwide citation)

PROBLEM TO BE SOLVED: To provide a convenient and safe electronic coupon system.SOLUTION: This electronic coupon system for offering an electronic coupon to a user possessing a portable telephone 5 provided with a display device, has a coupon information storing part 23 for storing information on an ...


5
Kitaura Keiko, Fujita Ichiro, Matsuoka Kenji: System and method for supporting musical information use. Hitachi Maxell, July 19, 2001: JP2001-195420

PROBLEM TO BE SOLVED: To support a user in the use of musical information in a network. SOLUTION: This system acquires a retrieval condition about music (S38) and performs retrieval (S49). A Web page, including a link to a music distribution source, is outputted as retrieval results to a user termin ...


6
Kitaura Keiko, Fujita Ichiro: Device for controlling information and method for providing information. Hitachi Maxell, December 7, 2001: JP2001-338070

PROBLEM TO BE SOLVED: To provide an information controller and an information providing method of digital information capable of providing a bi-directional service for allowing a user to provide his or her own data, and to obtain information matched with the data.SOLUTION: This controller as one ill ...


7
Fujita Ichirou, Kitaura Keiko, Suzuki Chika, Yamato Yorichika: Electronic coupon system. Hitachi Maxell, February 8, 2002: KR1020010035766

PURPOSE: An electronic coupon system is provided to effectively utilize information gathered in conjunction with the use of electronic coupons. CONSTITUTION: An electronic coupon system for providing an electronic coupon to a user having a mobile communication device(5) with a display device, the el ...