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Masahiko Takenaka, Naoya Torii, Takayuki Hasebe, Ryota Akiyama: Modular arithmetic operation system. Fujitsu, Nikaido Marmelstein Murray & Oram, March 12, 1996: US05499299 (47 worldwide citation)

A modular arithmetic unit comprises an input register, a multiple computing section, an adder, and a correcting section. There is provided a multiple table in which multiples of a modulo N are stored to correspond with low-order some bits of an input number T in the input register. The low-order som ...


2
Takayuki Hasebe, Naoya Torii, Noboru Iwayama, Masahiko Takenaka, Masahiro Matsuda: Software charging system and software data utilization permitting device. Fujitsu, Staas & Halsey, June 2, 1998: US05761651 (46 worldwide citation)

A software charging system includes a utilization permitting device for giving permission to use a software storing medium storing ciphered programs or data (software); and an authorization center capable of communicating with the utilization permitting device for setting a utilizable amount, totall ...


3
Noboru Iwayama, Naoya Torii, Takayuki Hasebe, Masahiko Takenaka, Masahiro Matsuda: Method and device for utilizing data content. Fujitsu, Staas & Halsey, November 3, 1998: US05832083 (39 worldwide citation)

The present invention provides a data content utilizing device having data storing section for storing information obtained by encoding data contents and content identification information specifying the data contents, a utilization permitting device for generating utilization permission information ...


4
Masahiko Takenaka: Trunk storage system for small vehicles. Honda Giken Kogyo Kabushiki Kaisha, Lyon & Lyon, June 11, 1985: US04522442 (28 worldwide citation)

A trunk storage system for use in vehicles having a front leg shield. The trunk storage system has a cavity formed within the front leg shield. A removable trunk is adapted to fit within the cavity and the trunk includes a lid member which forms a continuous surface with the front leg shield. Means ...


5
Masahiko Takenaka, Takayuki Hasebe, Naoya Torii, Noboru Iwayama: File protection system, software utilization system using the file protection system and storage medium used in the software utilization system. Fujitsu, Staas & Halsey, June 29, 1999: US05917908 (19 worldwide citation)

A file protection system for protecting a file which is stored in a storage unit includes a storage position deciding unit for deciding a positional-information corresponding to an area in which information of the file is stored in the storage unit and an encryption unit for encrypting the informati ...


6
Masahiro Matsuda, Naoya Torii, Takayuki Hasebe, Noboru Iwayama, Masahiko Takenaka: Moving-picture encipherment method and system, and enciphered moving-picture decipherment method and system. Fujitsu, Staas & Halsey, April 15, 1997: US05621794 (18 worldwide citation)

Moving-picture data in a frame is encoded without depending on another frame of moving-picture data, and moving-picture data in a frame is encoded depending on another frame of moving-picture data. Whether each frame of moving-picture data is a frame which was encoded without depending on another fr ...


7
Koichi Ito, Masahiko Takenaka, Naoya Torii: Encryption secured against DPA. Fujitsu, Staas & Halsey, June 10, 2008: US07386130 (14 worldwide citation)

The encryption device includes a random number generator for generating a random number; and a first selector for selecting one of q fixed values in response to the random number, a second selector for selecting one set of q sets of fixed S-box tables in response to the random number. An XOR XORs an ...


8
Shinichi Shiotsu, Isamu Yamada, Satoshi Inano, Kouichi Yasaki, Akira Itasaki, Atsushi Sakai, Masahiko Takenaka, Takanao Ochiai: Information access system and active-type contactless information storage device. Fujitsu, Kratz Quintos & Hanson, October 11, 2011: US08035488 (14 worldwide citation)

An information access system comprises a reader/writer for continually transmitting an ID request signal at a first frequency and being continuously ready to receive an RF signal at a second frequency, and an active contactless information storage device having a receiver for sensing a carrier of an ...


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Masahiko Takenaka, Hideki Hayashi: Engine mounting structure of low floor type vehicle. Honda Giken Kogyo Kabushiki Kaisha, Hamre Schumann Mueller & Larson P C, April 22, 2008: US07360620 (11 worldwide citation)

In a low floor type vehicle 10, a banking angle θ1 of a longitudinal V-type engine 100 mounted below a low floor is set to an angle equal to or exceeding approximately 90°. The V-type engine is arranged with a bisector L1 of the banking angle directed toward a head pipe 21 of a body frame 20. The bo ...