41
Akira Yasuda, Takashi Kimura: Spread frequency spectrum waveform generating circuit. Texas Instruments Incorporated, William B Kempler, Wade J Brady III, Frederick J Telecky Jr, April 10, 2012: US08155164 (2 worldwide citation)

The objective of this invention is to provide a circuit that generates a spread frequency spectrum waveform with shaped frequency spectrum distribution. The waveform generator has a spread spectrum waveform generating circuit that generates a waveform with a spread spectrum and frequency spectrum di ...


42
Akira Yasuda, Takaaki Hira, Toshitake Hanazawa, Hiroaki Ueno, Yoshihisa Serizawa, Tadaaki Morishita, Kazuyoshi Sato: Galvannealed steel sheets exhibiting excellent press die sliding property. Kawasaki Steel Corporation, Toyota Jidosha Kabushiki Kaisha, Oliff & Berridge, June 28, 1994: US05324594 (2 worldwide citation)

In a hot-dip zinc-coated steel sheet exhibiting excellent press die sliding characteristics and obtained by performing a molten galvanization and then skin pass rolling on a surface of the steel sheet, a galvanized layer has a three-dimensional average surface roughness ranging from 0.7 .mu.m to 1.4 ...


43
Hisatada Nakakoji, Seiji Nakajima, Akira Yasuda, Hajime Kumura: Method of producing a steel sheet plated with Zn-Mg alloy superior both in plating adhesion and corrosion resistance, and steel sheet plated with the same. Kawasaki Steel Corporation, Austin R Miller, June 4, 1991: US05021301 (2 worldwide citation)

A plated steel sheet is produced by an electroplating in a plating bath of about 350.degree. to 500.degree. C. containing a chloride of Zn, a chloride of Mg and one, two or more of chlorides of Na, K and Li, with a plating current density ranging between about 20 and 350 A/dm.sup.2.


44
Akira Yasuda, Junichi Okamura: Digital/analog conversion apparatus. TRIGENCE SEMICONDUCTOR, Typha IP, June 13, 2017: US09681231 (1 worldwide citation)

A digital/analog conversion apparatus to convert a digital signal into an analog signal. The digital/analog conversion apparatus can generate a high-quality analog signal, even when elements configuring the digital/analog conversion apparatus have variance, with high resolution and a small circuit s ...


45
Akira Yasuda, Junichi Okamura: Digital/analogue conversion apparatus. TRIGENCE SEMICONDUCTORS, Typha IP, March 1, 2016: US09276540 (1 worldwide citation)

A digital/analog conversion apparatus to convert a digital signal into an analog signal. The digital/analog conversion apparatus can generate a high-quality analog signal, even when elements configuring the digital/analog conversion apparatus have variance, with high resolution and a small circuit s ...


46
Akira Yasuda, Jun ichi Okamura: Acoustic playback system. Trigence Semiconductor, Typha IP, January 10, 2017: US09544691 (1 worldwide citation)

An acoustic playback system including a digital filter; and a plurality of digital modulators each of which output a digital signal to one of a plurality of speakers driven by digital signals having different play back bandwidths; wherein the digital filter converts a digital audio signal which is i ...


47
Akira Yasuda, Jun ichi Okamura: Acoustic playback system. TRIGENCE SEMICONDUCTOR, Staas & Halsey, December 22, 2015: US09219960 (1 worldwide citation)

An acoustic playback system including a digital filter; and a plurality of digital modulators each of which output a digital signal to one of a plurality of speakers configured with speakers driven by digital signals having different play back bandwidths; wherein the digital filter converts a digita ...


48
Akira Yasuda, Rihei Nagase: Imidazole compound-containing hardening agent composition, method of preparing the same and thermosetting epoxy resin composition. Somar Corporation, Sughrue Mion Zinn Macpeak & Seas, September 14, 1993: US05244939 (1 worldwide citation)

A hardening agent composition for epoxy resins and a method for forming the composition is disclosed, which comprises a low-reactive hardening agent, an imidazole compound and a zeolite, wherein the imidazole compound is substituted on the imidazole nucleus by at least one of (a) and (b): (a) an alk ...


49
Takahito Tojima, Akira Yasuda, Makoto Ishikawa: Image forming apparatus and sheet feed unit. Riso Kagaku Corporation, Kanesaka & Takeuchi, June 11, 1996: US05524874 (1 worldwide citation)

An image forming apparatus includes a body equipped with an image forming device, a pick-up means provided in one part of the body for taking image forming sheets into the body, and a sheet feed unit releasably mounted on one part of the body for loading a plurality of sheets stacked and for pushing ...


50
Akira Yasuda, Hideaki Takayama, Masaharu Ogata: Pressure printing apparatus. Riso Kagaku Corporation, Sughrue Mion Zinn Macpeak & seas, July 15, 1997: US05647274 (1 worldwide citation)

A pressure printing apparatus in which a printing sheet is pressed against a stencil sheet, the pressure printing apparatus includes: a printing sheet table having a printing sheet holding surface inclined vertically; a sheet slidable member provided on the printing sheet holding surface of the prin ...