Patents by Inventor Toshitake Nagai
Toshitake Nagai 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: 5699675Abstract: An object of the invention is to settle an unbalanced refrigerant flow in a heat exchanger thereby to improve a heat exchanging efficiency. In a heat exchanger having a refrigerant conduit provided through a plurality of fins, the refrigerant conduit is divided into a plurality of sets, each consisting of a plurality of parallel conduits, and parallel conduits of a set are put in communication with each other at ends thereof and in communication, through a single passage, with ends of parallel conduits of another set.Type: GrantFiled: June 23, 1995Date of Patent: December 23, 1997Assignee: Sanyo Electric Co., Ltd.Inventors: Toshitake Nagai, Yonezo Ikumi, Takahide Kakinuma, Norio Sawada, Koji Sato, Masato Watanabe
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Patent number: 5634352Abstract: A refrigeration cycle including a compressor, an indoor heat exchanger, an expansion, an outdoor heat exchanger and a six-way change-over valve having a refrigerant passage through which refrigerant flows in a refrigerant circuit comprising the compressor, the indoor heat exchanger, the expansion and the outdoor heat exchanger, wherein the six-way change-over valve serves to selectively switch the refrigerant passage so that the refrigerant passing in the indoor and outdoor heat exchangers flows in the same direction at any time when the refrigerant cycle is switched to a cooling operation cycle and to a heating operation cycle.Type: GrantFiled: May 23, 1995Date of Patent: June 3, 1997Assignee: Sanyo Electric Co., Ltd.Inventors: Toshitake Nagai, Yonezo Ikumi, Takahide Kakinuma, Norio Sawada, Koji Sato
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Patent number: 5632152Abstract: Artificial snow granule in granule form comprising a super absorbent polymer in granule form as a nucleus and an ice layer surrounding the nucleus is provided here. An aggregate form is provided by linkage of adjacent ice layers and/or granules. Further, a snow granule quality improver is provided. A method for making the above-mentioned snow granule in a granule or an aggregate form is also provided here.Type: GrantFiled: May 18, 1995Date of Patent: May 27, 1997Assignees: Miura Dolphins Co., Ltd., Tonen Corporation, Osaka Organic Chemical Industry Co., Ltd., Tonen Chemical Corporation, Sanyo Electric Co., Ltd., Masahisa OhtsukaInventors: Yuichiro Miura, Kazuo Hirano, Takayuki Nate, Taiji Kambayashi, Masahisa Ohtsuka, Toshitake Nagai
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Patent number: 5626030Abstract: A refrigerant flow amount control valve has a construction for adjusting the amount of flow of a refrigerant in a predetermined range and a bypass for allowing the refrigerant to flow without passing through the construction when the valve is in an open state. The construction and the bypass are disposed in parallel to form a common refrigerant flow path through the valve.Type: GrantFiled: November 22, 1995Date of Patent: May 6, 1997Assignee: Sanyo Electric Co., Ltd.Inventor: Toshitake Nagai
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Patent number: 5556671Abstract: Artificial snow granule in granule form comprising a super adsorbent polymer in granule form as a nucleus and an ice layer surrounding the nucleus is provided here. An aggregate form is provided by linkage of adjacent ice layers and/or granules. Further, a snow granule quality improver is provided. A method for making the above-mentioned snow granule in a granule or an aggregate form is also provided here.Type: GrantFiled: March 15, 1995Date of Patent: September 17, 1996Assignees: Miura Dolphins Co., Ltd., Tonen Corporation, Osaka Organic Chemical Industry Co., Ltd., Tonen Chemical Corporation, Sanyo Electric Co., Ltd., Masahisa OhtsukaInventors: Yuichiro Miura, Kazuo Hirano, Takayuki Nate, Taiji Kambayashi, Masahisa Ohtsuka, Toshitake Nagai
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Patent number: 5436039Abstract: Artificial snow granule in granule form comprising a super absorbent polymer in granule form as a nucleus and an ice layer surrounding the nucleus is provided here. An aggregate form is provided by linkage of adjacent two ice layers and/or two granules. Further, a snow granule quality improver is provided. A method for making the above-mentioned snow granule in granule or an aggregate form is also provided here.Type: GrantFiled: August 30, 1993Date of Patent: July 25, 1995Assignees: Miura Dolphins, Co., Ltd., Tonen Corporation, Osaka Organic Chemical Industry Co., Ltd., Tonen Chemical Corp., Sanyo Electric Co., Ltd., Ohtsuka, Masahisa, OhizumimachiInventors: Yuichiro Miura, Kazuo Hirano, Takayuki Nate, Taiji Kambayashi, Masahisa Ohtsuka, Toshitake Nagai
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Patent number: 5266367Abstract: Artificial snow granule in granule form comprising a super absorbent polymer in granule form as a nucleus and an ice layer surrounding the nucleus is provided here.Artificial snow granule in an aggregate form of snow granule granules comprising super absorbent polymer in granule form as nucleus and ice layers surrounded the nucleus wherein said aggregate form is caused by a linkage of the adjacent ice layers and/or granules.Further, a snow granule quality improver is provided.A method for making the above-mentioned snow granule in granule or an aggregate form is also provided here.Type: GrantFiled: January 31, 1991Date of Patent: November 30, 1993Assignees: Miura Dolphins Co., Ltd., Tonen Corporation, Osaka Organic Chemical Industry Co., Ltd., Tonen Chemical Corp., Sanyo Electric Co., Ltd., Masahisa OhtsukaInventors: Yuichiro Miura, Kazuo Hirano, Takayuki Nate, Taiji Kambayashi, Masahisa Ohtsuka, Toshitake Nagai
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Patent number: 5261245Abstract: A method for easily making an ice slab serving as the foundation of an artificial snow skiing field and artificial snow whose upper layer is powdery by flooding aqueous slurry made by adding water to granular wet water absorbent polymer on a slope of a natural skiing field or a slant or horizontal surface of a natural skiing field or indoor artificial snow skiing field equipped with a cooling system, obtaining the deposit layer of the granular wet water absorbent polymer in which water is separated from the slurry and freezing the deposit layer.Type: GrantFiled: February 28, 1992Date of Patent: November 16, 1993Assignees: Miura Dolphins Co., Ltd., Tonen Corporation, Osaka Organic Chemical Industry Co., Ltd., Tonen Chemical Corp., Sanyo Electric Co., Ltd., Ohtsuka, MasahisaInventors: Haruhiko Tanaka, Taiji Kambayashi, Yasumasa Sugiyama, Toshitake Nagai, Koiti Nagata, Kohei Kubota, Kazuo Hirano
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Patent number: 5136849Abstract: A snow composition is here provided which comprises ofabout 100 parts by weight of snow selected from the group comprising of natural snow, artificial snow made by a snow machine, and icy snow made by shattering ice blocks to fragments andabout 0.1 to about 10.0 parts by weight of a super absorbent polymer in granule form having an average particle size of about 20 to about 500 .mu.m before water absorption.A method for making artificial snow is also provided here.Type: GrantFiled: January 31, 1991Date of Patent: August 11, 1992Assignees: Miura Dolphins Co., Ltd., Tonen Corporation, Osaka Organic Chemical Industry Co., Ltd., Tonen Chemical Corp., Sanyo Electric Co., Ltd.Inventors: Yuichiro Miura, Kazuo Hirano, Takayuki Nate, Taiji Kambayashi, Masahisa Ohtsuka, Toshitake Nagai
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Patent number: 4876070Abstract: Disclosed is an air blower apparatus for conditioning a room, including synthetic resin components which come in contact with air flow. The synthetic resin components are molded from polypropylene resin, to which at least one antimicrobial agent selected from diphenylethers, N-haloalkylthio compounds, benzimidazoles, organic arsine compounds and metal alumino-silicate hydrate is mixed prior to molding of the components.Type: GrantFiled: November 6, 1987Date of Patent: October 24, 1989Assignee: Sanyo Electric Co., Ltd.Inventors: Hitoshi Tsukahara, Keiko Kurokawa, Toshimitsu Tsukui, Toshitake Nagai