Patents by Inventor Seiki Suzuki
Seiki Suzuki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140186208Abstract: To provide audio solder alloy which is senary solder alloy (Sn.Ag.Cu.In.Ni.Pb) and has their appropriate contained amounts to obtain excellent sound quality and high auditory assessment, as the joining solder for connecting various kinds of electronics parts used for electronic circuit such as a filter circuit NW for audio system. A preferably example of the contained amounts is as follows: Ag of 1.0 through 1.01% by mass, Cu of 0.71 through 0.72% by mass, In of 0.003 through 0.0037% by mass, Ni of 0.016 through 0.017% by mass, Pb of 0.0025 through 0.0035% by mass and the remainder of Sn.Type: ApplicationFiled: May 10, 2012Publication date: July 3, 2014Applicant: SENJU METAL INDUSTRY CO., LTD.Inventors: Ippei Akagi, Hideki Tokimoto, Seiki Suzuki, Masahumi Seino, Isamu Osawa, Minoru Ueshima
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Patent number: 8724843Abstract: A casing for covering an outer yoke is provided; an acoustic cavity is formed by this casing; a diaphragm and the outer surface of a side wall of the outer yoke; a second elastic member is provided to join the outer circumferential edge of the casing to the outer circumferential edge of the diaphragm without any gap therebetween; this second elastic member includes pores formed by foaming and made of a material whose elastic modulus is smaller than that of a first elastic member; and pores communicating through from the back surface of the second elastic member, that is the inner side of the casing, to the front surface that is the opposite side of the back surface are eliminated.Type: GrantFiled: August 9, 2011Date of Patent: May 13, 2014Assignee: Mitsubishi Electric CorporationInventors: Satoru Inoue, Mutsuo Sekiya, Seiki Suzuki
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Publication number: 20130039526Abstract: A casing for covering an outer yoke is provided; an acoustic cavity is formed by this casing; a diaphragm and the outer surface of a side wall of the outer yoke; a second elastic member is provided to join the outer circumferential edge of the casing to the outer circumferential edge of the diaphragm without any gap therebetween; this second elastic member includes pores formed by foaming and made of a material whose elastic modulus is smaller than that of a first elastic member; and pores communicating through from the back surface of the second elastic member, that is the inner side of the casing, to the front surface that is the opposite side of the back surface are eliminated.Type: ApplicationFiled: August 9, 2011Publication date: February 14, 2013Inventors: Satoru Inoue, Mutsuo Sekiya, Seiki Suzuki
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Patent number: 8284088Abstract: A complementary pulse width modulation circuit is composed of a signal generating circuit 10 for generating first and second pulse width modulation signals (PWM#1 and PWM#2) that are complementary to each other from an input signal (IN) in response to a sampling synchronous signal (Sample) generated in synchronization with a clock (CLK); and a signal output circuit 20 for combining a positive signal and a negative signal of the first pulse width modulation signal (PWM#1) generated by the signal generating circuit, and for combining the first pulse width modulation signal (PWM#1) combined with the second pulse width modulation signal (PWM#2), followed by outputting.Type: GrantFiled: October 2, 2009Date of Patent: October 9, 2012Assignee: Mitsubishi Electric CorporationInventors: Kohei Teramoto, Tsuyoshi Nakada, Seiki Suzuki, Takahisa Aoyagi, Jun Yoshida, Ryoichi Hamahashi
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Patent number: 8222984Abstract: Two layers of a plurality of rod-like permanent magnets each having a width Wm, a thickness Tm and a predetermined length are aligned on a plane in such a way that they have opposite magnetic pole orientations alternately and are aligned at a fixed pole pitch ?p are arranged to be opposed to each other with the magnetic pole orientation of each magnet in one of the layers being identical to that of the opposing magnet in the other layer. The opposing surfaces of the magnets are spaced a distance 2×lg from each other, and a vibrating membrane on which coils each having a conductive pattern are arranged is placed in a gap between any two adjacent rod-like permanent magnets in each of the two layers, where lg is a distance from the vibrating membrane to the surface of a magnet. The arrangement of the rod-like permanent magnets is optimized by using Wm, Tm, ?p, and lg.Type: GrantFiled: October 20, 2008Date of Patent: July 17, 2012Assignee: Mitsubishi Electric Engineering Co., LtdInventors: Shinichi Sakai, Seiki Suzuki, Kanji Shinkawa
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Publication number: 20110169679Abstract: A complementary pulse width modulation circuit is composed of a signal generating circuit 10 for generating first and second pulse width modulation signals (PWM#1 and PWM#2) that are complementary to each other from an input signal (IN) in response to a sampling synchronous signal (Sample) generated in synchronization with a clock (CLK); and a signal output circuit 20 for combining a positive signal and a negative signal of the first pulse width modulation signal (PWM#1) generated by the signal generating circuit, and for combining the first pulse width modulation signal (PWM#1) combined with the second pulse width modulation signal (PWM#2), followed by outputting.Type: ApplicationFiled: October 2, 2009Publication date: July 14, 2011Inventors: Kohei Teramoto, Tsuyoshi Nakada, Seiki Suzuki, Takahisa Aoyagi, Jun Yoshida, Ryoichi Hamahashi
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Publication number: 20100214047Abstract: Two layers in each of which a plurality of rod-like permanent magnets each having a width Wm, a thickness Tm and a predetermined length are aligned on a plane in such a way that they have opposite magnetic pole orientations alternately and are aligned at a fixed pole pitch ?p are arranged to be opposed to each other with the magnetic pole orientation of each magnet in one of the layers being identical to that of the opposing magnet in the other layer, and with the opposing surfaces of the magnets being spaced a distance 2×lg apart from each other, and a vibrating membrane on which coils each having a conductive pattern are arranged is placed in a gap between any two adjacent rod-like permanent magnets in each of the above-mentioned two layers. The arrangement of the rod-like permanent magnets is optimized by using Wm, Tm, ?p, and lg.Type: ApplicationFiled: October 20, 2008Publication date: August 26, 2010Applicant: Mitsubishi Electric Engineering Company, LimitedInventors: Shinichi Sakai, Seiki Suzuki, Kanji Shinkawa
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Patent number: 7199496Abstract: The heat-generating components of an integrated motor system are disposed proximate the motor body, for efficient heat dissipation, and the heat-sensitive components are segregated therefrom, physically and thermally.Type: GrantFiled: January 18, 2005Date of Patent: April 3, 2007Assignee: Oriental Motor Boston Technology Group IncorporatedInventors: Seiki Suzuki, Yasuo Sato, Akihiko Hoda, Chikara Sugawara, Yoshinari Araki, Eiji Oi, Hung D. Vu
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Publication number: 20060158049Abstract: The heat-generating components of an integrated motor system are disposed proximate the motor body, for efficient heat dissipation, and the heat-sensitive components are segregated therefrom, physically and thermally.Type: ApplicationFiled: January 18, 2005Publication date: July 20, 2006Inventors: Seiki Suzuki, Yasuo Sato, Akihiko Hoda, Chikara Sugawara, Yoshinari Araki, Eiji Oi, Hung Vu
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Patent number: 6635695Abstract: An adhesive composition for lignocellulose-type hot-pressed forms is disclosed which comprises (A) an organopolyisocyanate which is a polyisocyanate composed chiefly of from 20% by weight to 70% by weight of a diphenylmethane diisocyanate having two benzene rings in one molecule and from 80% by weight to 30% by weight of a diphenylmethane diisocyanate polynuclear condensate having at least three benzene rings in one molecule, and has a viscosity of 500 mPa·s or less in the state of solid content=100% by weight at 25° C.; and (B) a wax emulsion prepared by emulsifying a wax (B1) which is a paraffin wax containing at least 80% by weight of a paraffin having 20 to 40 carbon atoms, and has a melting point of from 40° C. to 100° C., with an emulsifier (B2) which is an ethylene oxide polyaddition product of an aliphatic monoalcohol whose aliphatic chain has 14 to 20 carbon atoms.Type: GrantFiled: April 5, 2001Date of Patent: October 21, 2003Assignee: Nippon Polyurethane Industry Co., Ltd.Inventors: Mitsuhiro Yoshida, Seiki Suzuki, Tadashi Kimura, Masashi Kanaya
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Publication number: 20020143085Abstract: An adhesive composition for lignocellulose-type hot-pressed forms is disclosed which comprises (A) an organopolyisocyanate which is a polyisocyanate composed chiefly of from 20% by weight to 70% by weight of a diphenylmethane diisocyanate having two benzene rings in one molecule and from 80% by weight to 30% by weight of a diphenylmethane diisocyanate polynuclear condensate having at least three benzene rings in one molecule, and has a viscosity of 500 mPa·s or less in the state of solid content 100% by weight at 25° C; and (B) a wax emulsion prepared by emulsifying a wax (B1) which is a paraffin wax containing at least 80% by weight of a paraffin having 20 to 40 carbon atoms, and has a melting point of from 40° C. to 100° C., with an emulsifier (B2) which is an ethylene oxide polyaddition product of an aliphatic monoalcohol whose aliphatic chain has 14 to 20 carbon atoms. Also disclosed is a process for producing lignocellulose-type hot-pressed forms, using this adhesive composition.Type: ApplicationFiled: April 5, 2001Publication date: October 3, 2002Inventors: Mitsuhiro Yoshida, Seiki Suzuki, Tadashi Kimura, Masashi Kanaya
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Patent number: 6259799Abstract: A speaker system includes a plurality of double-voice-coil speaker units fitted to a closed type cabinet and connected in parallel with each other so that first voice coils are connected to each other at the same polarities, and second voice coils are connected to each other at the same polarities, and a single impedance compensating circuit is connected in series to the second voice coils for making the input impedance as the speaker system constant.Type: GrantFiled: April 16, 1998Date of Patent: July 10, 2001Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Seiki Suzuki, Noboru Kyouno
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Patent number: 6148088Abstract: In a speaker system employing a bass reflex or Kelton type cabinet intends to solve deterioration in efficiency of a speaker caused by an increase in impedance otherwise occurring on both sides of the antiresonance frequency, and to improve the sound radiating efficiency. The speaker system comprises a plurality of dual-voice-coil speaker units (20) which are attached to a bass reflex or Kelton type cabinet (50) and made up of first voice coils (21) connected in parallel to each other with the same polarities joined into one terminal and second voice coils (22) connected in parallel to each other with their same polarities joined into one terminal, and one impedance compensation circuit (10) connected in series to the plurality of second voice coils, which are connected in parallel to each other, for thereby keeping constant the input impedance as a parameter of the speaker system.Type: GrantFiled: September 4, 1998Date of Patent: November 14, 2000Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Seiki Suzuki, Noboru Kyouno
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Patent number: D991213Type: GrantFiled: June 14, 2021Date of Patent: July 4, 2023Assignee: ALPHATHETA CORPORATIONInventors: Muneki Sugita, Seiki Suzuki
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Patent number: D998586Type: GrantFiled: June 14, 2021Date of Patent: September 12, 2023Assignee: ALPHATHETA CORPORATIONInventor: Seiki Suzuki