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Morita Akira, Yoshimura Hiroyuki: Phase difference measuring apparatus and mass flowmeter thereof. Fuji Electric, March 20, 1996: EP0702212-A2 (61 worldwide citation)

A phase difference measuring apparatus for accurately measuring the phase difference (fine time difference) of two signals with the same frequency with a reduced number of bits for A/D conversion is disclosed. In addition to output signals of an upstream side pickup and a downstream side pickup of a ...


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Kawakami Soichiro, Morita Akira, Ogura Takao: Electrode structure for lithium secondary battery and secondary battery having such electrode structure. Canon, June 28, 2007: JP2007-165061 (15 worldwide citation)

PROBLEM TO BE SOLVED: To provide an electrode structure for a lithium secondary battery having a high capacity and a long lifetime; and to provide a lithium secondary battery using the electrode structure and having the high capacity, high energy density, and the long lifetime.SOLUTION: The electrod ...


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Tajima Toshifumi, Nishiguchi Toshiyuki, Saito Nobuo, Morita Akira: Chip microphone and method of making same. Japan Broadcasting, March 12, 2003: EP1292171-A2 (9 worldwide citation)

A chip microphone implemented as a single silicon-based chip includes a diaphragm which includes a vibration portion that vibrates in response to sound pressures, a support block which is formed on the diaphragm, excluding at least the vibration portion to provide a vibration space, and a back plate ...


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Sekizawa Yoshifumi, Morita Akira, Nishide Hiroyuki, Koyaizu Kenichi, Shinto Hokyo: Fuel cell cathode and solid polymer fuel cell provided with it. Toyota Motor, November 11, 2004: JP2004-319292 (9 worldwide citation)

PROBLEM TO BE SOLVED: To provide a cathode having excellent electrode characteristic to oxygen reduction reaction, and a solid polymer fuel cell provided with it capable of providing a high battery output.SOLUTION: This fuel cell cathode comprises a catalyst layer consisting of a catalyst carrier co ...


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Kawatsura Yoshiaki, Chiba Hiroyuki, Watanabe Kiyoshi, Morita Akira, Tomiyama Tomochika, Akutsu Takeshi: Apparatus and method for the distribution of encrypted contents. Hitachi, January 30, 2002: EP1176490-A2 (7 worldwide citation)

Recipient machine sends a contents request message with recipient's public key to entitlement granter machine. On the entitlement granter machine, digital rights data relevant to the contents request is encrypted with the recipient's public key. Encrypted digital rights data with the entitlement gra ...


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Morita Akira: Reference voltage generation circuit, display driving circuit, display device, and reference voltage generation method. Seiko Epson, August 22, 2003: JP2003-233357 (7 worldwide citation)

PROBLEM TO BE SOLVED: To provide a reference voltage generation circuit, a display driving circuit, a display device, and a reference voltage generation method, capable of reducing consumption of current when performing polarity inversion driving.SOLUTION: The reference voltage generation circuit 20 ...


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Tajima Toshifumi, Nishiguchi Toshiyuki, Saito Nobuo, Morita Akira: Microphone mount circuit board, and sound processing apparatus mounted with the board. Nippon Hoso Kyokai &Lt Nhk&Gt, March 14, 2003: JP2003-078981 (7 worldwide citation)

PROBLEM TO BE SOLVED: To make a microphone mount circuit board small in size, low in cost and improved in reliability.SOLUTION: A vibration membrane 12 vibrated by a sound pressure is formed in the middle of a base 11 and a support 13 surrounding the vibration membrane 12 supports a rear plate 14 to ...


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Morita Akira, Kawakami Soichiro: Lithium secondary battery and its manufacturing method. Canon, August 17, 2006: JP2006-216276 (7 worldwide citation)

PROBLEM TO BE SOLVED: To provide a lithium secondary battery capable of enhancing energy density and a cycle life.SOLUTION: This lithium secondary battery has a positive electrode, a negative electrode, and a nonaqueous electrolyte, and the nonaqueous electrolyte contains an electrolytic oxidation p ...


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Yoshimura Hiroyuki, Morita Akira: Phase difference measuring apparatus for measuring phase difference between input signals. Fuji Electric, August 27, 1997: EP0791807-A2 (6 worldwide citation)

A phase difference measuring apparatus for precisely measuring a phase difference between two input signals having the same frequency sent from, for example, a Coriolis type mass flowmeter. A differential amplifier in the apparatus provides the sum or difference of the two input signals and a multip ...