Patents by Inventor Yoshihide Miyazawa
Yoshihide Miyazawa 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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Patent number: 6542368Abstract: A heat sink and a power source unit employing the same can minimize leakage of plosive outside of the power source unit upon failure of semiconductor parts and can restrict leakage of flashing, odor, smoke and so forth which is possibly caused upon occurrence of failure of the semiconductor parts. The heat sink has a heat radiating casing housing therein a semiconductor part forming a power source unit therein and whereby sealing the semiconductor part within the casing.Type: GrantFiled: September 26, 2001Date of Patent: April 1, 2003Assignee: NEC CorporationInventor: Yoshihide Miyazawa
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Publication number: 20020041488Abstract: A heat sink and a power source unit employing the same can minimize leakage of plosive outside of the power source unit upon failure of semiconductor parts and can restrict leakage flashing, foreign odor, smoke and so forth which is possibly caused upon occurrence of failure of the semiconductor parts. The heat sink has a heat radiating casing housing therein a semiconductor part forming a power source unit therein, and whereby sealing the semiconductor part within the casing.Type: ApplicationFiled: September 26, 2001Publication date: April 11, 2002Applicant: NEC CORPORATIONInventor: Yoshihide Miyazawa
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Patent number: 6034444Abstract: A power supply system includes a plurality of power supply devices which are mounted in a mount region and a control [means] unit (namely, a central processing unit), The control [means] unit is connected to the power supply devices and sets a power supply quantity to be supplied to an external load apparatus. [Herein,] The power supply devices are assigned connection positions as addresses in the mount region[, respectively]. Further, the power supply devices send the connection positions as connection position signals into the control [means] unit. The control means determines the number of the power supply devices based upon the connection position signals and sets the power supply quantity based upon the number.Type: GrantFiled: February 18, 1998Date of Patent: March 7, 2000Assignees: NEC Corporation, Fuji Electric Co., Ltd.Inventors: Akio Kuruma, Yoshihide Miyazawa, Tetsuya Mochizuki, Toshio Hatakeyama, Shinichi Narasaki, Yoshishige Okuhara
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Patent number: 4284696Abstract: Disclosed is a light transmission particle containing a colorless sublimable dye, an acyl leucophenoxazine compound suitable for use in the formation of a color image. This particle can produce a clear color image having little fogging and having an excellent resolving power.Type: GrantFiled: May 15, 1978Date of Patent: August 18, 1981Assignees: Hodogaya Chemical Co., Ltd., Matsushita Electric Industrial Co., Ltd.Inventors: Eisuke Ishida, Yuji Takashima, Hisanori Nishiguchi, Yoshihide Miyazawa, Katsuichi Motohashi
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Patent number: 4262078Abstract: Disclosed is a light transmitting particle containing a sublimable color-former that is a pyridine derivative suitable for use in the formation of a color image. This particle can produce a clear color image having little fogging and having an excellent resolving power.Type: GrantFiled: July 23, 1979Date of Patent: April 14, 1981Assignees: Matsushita Electric Industrial Co., Ltd., Hodogaya Chemical Co., Ltd.Inventors: Eisuke Ishida, Yuji Takashima, Yoshihide Miyazawa, Katsuichi Motohashi, Michihiro Gonda
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Patent number: 4238562Abstract: Disclosed is a light transmission particle containing a colorless sublimable dye that is a spirobenzopyrane indole compound suitable for use in the formation of a color image. This particle can produce a clear color image having little fogging and having an excellent resolving power.Type: GrantFiled: July 27, 1978Date of Patent: December 9, 1980Assignees: Hodogaya Chemical Co., Ltd., Matsushita Electric Industrial Co., Ltd.Inventors: Eisuke Ishida, Yuji Takashima, Hisanori Nishiguchi, Yoshihide Miyazawa, Shigeru Endo
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Patent number: 4073614Abstract: A mixture of a triphenylmethane compound represented by the formula (Ia) ##STR1## AND A TRIPHENYLMETHANE COMPOUND REPRESENTED BY THE FORMULA (Ib) ##STR2## WHEREIN R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and X are as defined hereinafter, useful as a color former.Type: GrantFiled: July 8, 1975Date of Patent: February 14, 1978Assignee: Hodogaya Chemical Co., Ltd.Inventors: Minoru Ozutsumi, Yoshihide Miyazawa, Masahiko Yamaguchi
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Patent number: 4074050Abstract: A triphenylmethane compound represented by the formula (Ia) ##STR1## OR A MIXTURE THEREOF, WHEREIN R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and X are as defined hereinafter, useful as a color former.Type: GrantFiled: March 16, 1977Date of Patent: February 14, 1978Assignee: Hodogaya Chemical Co., Ltd.Inventors: Minoru Ozutsumi, Yoshihide Miyazawa, Masahiko Yamaguchi
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Patent number: 4002631Abstract: A lactone compound represented by the following formula ##STR1## or ##STR2## or a mixture thereof, wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and A are as defined hereinafter and a process for preparing the same are disclosed.Type: GrantFiled: July 24, 1974Date of Patent: January 11, 1977Assignee: Hodogaya Chemical Co., Ltd.Inventors: Yoshihide Miyazawa, Minoru Ozutsumi, Satoshi Ogawa
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Patent number: 3996212Abstract: A pressure-sensitive copying paper comprising an adsorbent solid acid and a microencapsulated color former capable of forming a distinct color when reacted with the adsorbent acid coated on the same or a different surface of a support or supports, the microencapsulated color former being at least one fluoran compound represented by the formula; ##STR1## WHEREIN R.sub.1, R.sub.2, Z, m and ##STR2## are as defined hereinafter, is disclosed.Type: GrantFiled: January 9, 1975Date of Patent: December 7, 1976Assignees: Fuji Photo Film Co., Ltd., Hodogaya Chemical Co., Ltd.Inventors: Minoru Ozutsumi, Yoshihide Miyazawa, Katsuichi Motohashi, Masatake Kiritani, Akio Watanabe
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Patent number: 3979320Abstract: A liquid crystal composition having a homogeneous alignment of the liquid crystalline molecules, comprises a liquid crystal material, for example, nematic, smectic and cholesteric liquid crystal substances, an additive effective for forming the homogeneous alignment, said additive consisting of at least one heterocyclic compound having a five or six-membered heterocyclic ring containing therein at least one atomic group selected from the class consisting of the atomic group of the formulae; ##EQU1## wherein X is a hydrogen atom or substituted or unsubstituted phenyl radical, and at least one atomic group of the formula: ##EQU2## Y, wherein Y represents an oxygen or sulfur atom, said heterocyclic compounds being different from indigo, and, if necessary, a supplementary additive effective for enhancing the dynamic scattering property of the liquid crystal material, said supplementary additive consisting of at least one substance selected from the class consisting ofA.Type: GrantFiled: September 18, 1974Date of Patent: September 7, 1976Assignees: Hodogaya Chemical Co., Ltd., Nippon Electric Company, Ltd.Inventors: Minoru Ozutsumi, Yoshitake Ohnishi, Yoshihide Miyazawa, Michihiro Gonda
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Patent number: 3975285Abstract: A liquid crystal composition having long-life dynamic light scattering properties under application of DC or AC voltage, comprising (1) at least one liquid crystalline substance selected from the group consisting of nematic and cholesteric, and (2) at least one additive selected from the group consisting of (A) mixtures of at least one first organic cyclic compound selected from the group consisting of quinone compounds, quinoneimine compounds, imino compounds, desoxybenzoin compounds, dibenzyl methane compounds and triphenyl methane compounds, with at least one second organic cyclic compound selected from the group consisting of hydroquinone compounds, aromatic amino compounds, heterocyclic amino compounds and alicyclic amino compounds, and (B) aromatic, heterocyclic and alicyclic compounds having at least one radical selected from the group consisting of carbonyl and imino radicals and at least one radical selected from the group consisting of hydroxyl and amino radicals.Type: GrantFiled: October 30, 1973Date of Patent: August 17, 1976Assignees: Hodogaya Chemical Co., Ltd., Nippon Electric Company, Ltd.Inventors: Yoshitake Ohnishi, Minoru Ozutsumi, Yoshihide Miyazawa, Michihiro Gonda
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Patent number: 3967835Abstract: A pressure-sensitive copying material comprising a support having thereon a microencapsulated color former capable of forming a distinct color when reacted with an electron-accepting solid, the microencapsulated color former comprising at least one benzoxazine derivative represented by the formula (Ia) ##SPC1##, a benzodioxane derivative represented by the formula (Ib) ##SPC2##And a mixture thereof, wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and X are as defined hereinafter.Type: GrantFiled: July 8, 1975Date of Patent: July 6, 1976Assignees: Hodogaya Chemical Co., Ltd., Fuji Photo Film Co., Ltd.Inventors: Minoru Ozutsumi, Yoshihide Miyazawa, Masahiko Yamaguchi, Akio Watanabe, Keiso Saeki
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Patent number: 3936564Abstract: A pressure-sensitive copying paper comprising an adsorbent solid acid and a microencapsulated color former capable of forming a distinct color when reacted with the adsorbent acid coated on the same or a different surface of a support or supports, the microencapsulated color former being at least one lactone compound of a pyridine-carboxylic acid represented by the formula ##SPC1##Or a mixture thereof, wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and A are as defined hereinafter, is disclosed.Type: GrantFiled: July 24, 1974Date of Patent: February 3, 1976Assignees: Hodogaya Chemical Co., Ltd., Fuji Photo Film Co., Ltd.Inventors: Yoshihide Miyazawa, Minoru Ozutsumi, Satoshi Ogawa, Keiso Saeki, Akio Watanabe
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Patent number: 3930672Abstract: A pressure-sensitive copying paper comprising an adsorbent solid acid and a microencapsulated color former capable of forming a distinct color when reacted with the adsorbent acid coated on the same or a different surface of a support or supports, the microencapsulated color former being at least one lactone compound derived from a pyridine-carboxylic acid represented by the formula ##SPC1##Or a mixture thereof, wherein R.sub.1, R.sub.2, R.sub.3 and the partial structure ##SPC2##Are as defined hereinafter, is disclosed.Type: GrantFiled: March 25, 1974Date of Patent: January 6, 1976Assignees: Hodogaya Chemical Co., Ltd., Fuji Photo Film Co., Ltd.Inventors: Minoru Ozutsumi, Yoshihide Miyazawa, Susumu Suzuka, Sadao Ishige, Keiso Saeki, Akio Watanabe