1
Hirano Yasuhiro, Kawahara Takayuki, Otsubo Hiroyasu, Sakamoto Koji, Ota Masutomi, Hatae Hiroshi, Suzuki Takashi: Home electrical appliance, applicant registering method, order-accepting method, data processing system. Hitachi, August 30, 2002: JP2002-245235 (3 worldwide citation)

PROBLEM TO BE SOLVED: To facilitate setting and management of a cipher key, when adapting a domestic electric apparatus or the like to the terminal equipment of a network mail order or the like.SOLUTION: A data processing system, utilized for the network mail order or the like, is provided with a ho ...


2
Hirano Yasuhiro, Ota Masutomi, Hatae Hiroshi, Kawahara Takayuki, Osabe Taro, Sakamoto Koji: Memory card, information apparatus and information distribution method. Renesas Technology, February 19, 2004: JP2004-054473 (2 worldwide citation)

PROBLEM TO BE SOLVED: To provide a memory card with a use limiting function capable of easily setting a user, a use apparatus, use conditions or the like, and to provide a device and a method applied therewith.SOLUTION: In the memory card 1 with a copyright protecting function incorporated with a co ...


3
Ota Masutomi, Otsubo Hiroyasu, Kawahara Takayuki, Suzuki Takashi, Sakamoto Koji, Hatae Hiroshi, Hirano Yasuhiro: Intercom system. Hitachi, December 20, 2002: JP2002-368888 (2 worldwide citation)

PROBLEM TO BE SOLVED: To provide an intercom having excellent convenience that can identify a visitor with high accuracy even when the visitor is a visitor for the list time and attain communication with the dweller of a visited place. SOLUTION: A reception section 5 acquires a phone number of a mob ...


4
Shinada Shinichi, Kimura Takeshi, Arai Yoji, Ikuta Yasushi, Koname Kanji, Minamimura Yuichi, Tsuchiya Masashi, Yasuda Makoto, Urataki Etsuo, Ota Masutomi: Discharge display element. Hitachi, May 23, 1995: JP1995-134972

PURPOSE: To provide high luminance, high efficiency, a high contrast, low starting voltage, and a long life by extending a display discharge path in the direction crossing with a surface plate, opening it toward the surface plate, and tapering it partially with steep inclination. CONSTITUTION: Light ...


5
Wasai Kiyotaka, Yamamoto Akio, Funakawa Katsuo, Hagino Masanori, Ota Masutomi: Mirror device for back lighting type projector. Hitachi, November 26, 1993: JP1993-313249

PURPOSE: To produce a large-sized mirror, to disassemble, to reassemble, to carry in/out a reflective mirror through a standard door and to replace the reflective mirror after setting by vertically and horizontally arranging plural reflective mirrors in a plane state and uniting them. CONSTITUTION: ...


6
Hirano Yasuhiro, Sakamoto Koji, Hatae Hiroshi, Kawahara Takayuki, Ota Masutomi: Personal authentication system and operation prediction system. Hitachi, October 31, 2003: JP2003-308509

PROBLEM TO BE SOLVED: To provide a personal authentication system and an operation prediction system having high user authentication accuracy and extremely inexpensive.SOLUTION: ID code information written into a wireless authentication IC chip provided for a user is subjected to an authentication p ...


7
Ota Masutomi, Iwahara Yukiaki, Tamura Yuzo, Ogino Masanori: Multiple image plane screen. Hitachi, January 21, 1992: JP1992-016892

PURPOSE: To minimize the shadow of a screen fitting member seen at joins of images between unit screens by using two members, which are divided functionally as a fitting member for supporting the weight of the screen when the screen is fitted and a member for bringing the screen into contact with a ...



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