公开(公告)号：EP1510747A1

公开(公告)日：2005-03-02

申请号：EP03730754.3

申请日：2003-06-02

Applicant: MATSUSHITA REFRIGERATION COMPANY

Inventor： HIRAI, Yoshihide ,  HIRAI, Chie ,  TANIMOTO, Yasuaki ,  TSUNETSUGU, Keisuke ,  NAKAMA, Hiroto ,  AKEYAMA, Yukako

IPC: F16L59/06 ,  F25D23/06

CPC classification number: F16L59/065 ,  F25D23/065 ,  F25D2201/12 ,  F25D2201/14 ,  F25D2500/02 ,  Y10T428/231

Abstract: A vacuum heat insulator according to the present invention includes a core molded to be plate-shaped with the use of a binding agent. The vacuum heat insulator assumes any one of the following configurations. A) The core is formed by curing a fiber aggregate by means of a binding agent. The fibers have an average fiber diameter of at least 0.1 µm but at most 10 µm, and voids defined by fibers have a void diameter of at most 40 µm. The core has a percentage of the voids of at least 80 %. B) The binding agent is varied in concentration in a through-thickness direction of the core. C) A cured layer solidified by the binding agent is formed on at least one side surface of the core. D) The core contains fibers having a length of at most 100 µm. The fibers are oriented perpendicular to a direction of heat transmission. Such vacuum heat insulator is excellent in adiabatic property. Refrigerators, to which such a vacuum heat insulator is applied, are made small in size, or have a large inner volume, or contribute to energy saving.

公开(公告)号：EP1452855A1

公开(公告)日：2004-09-01

申请号：EP02785934.7

申请日：2002-11-13

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  MATSUSHITA REFRIGERATION COMPANY

Inventor： HATTORI, Akiyoshi ,  MACHII, Nobuyuki ,  HORI, Yoshihiro ,  WAKITA, Katsuya ,  SASABE, Shigeru ,  AKEYAMA, Yukako ,  WADA, Tomoko

IPC: G01N27/327

CPC classification number: G01N33/025 ,  G01N27/125

Abstract: The judgment about the freshness of food and drink has been made subjectively, and hence often not clear-cut; therefore, investigation has been actively made of the technology to use a semiconductor gas sensor to sense the freshness of food and drink. However, the gas sensors of the prior art have not been capable of sensing gases of, for example, ethylene, ethanol, aldehydes, mercaptans and amines, which are important in sensing the freshness of vegetables and fruits, with satisfactory responsiveness and excellent durability.
The gas sensor of the present invention includes: an insulating substrate 1; a pair of thin film electrodes 2 provided on the insulating substrate 1 in such a manner as to leave a fixed space between them; a gas sensitive film 3 including a metallic oxide which is provided in such a manner as to substantially fill at least the fixed space left between the electrodes; and a catalytically active protective layer 5 formed in such a manner as to cover the surface of the metallic oxide exposed to the outside.

Abstract translation: 关于食物和饮料的新鲜度的判断是主观的，因此经常不明确; 因此，积极研究了使用半导体气体传感器感测食物和饮料的新鲜度的技术。 然而，现有技术的气体传感器不能感测例如乙烯，乙醇，醛，硫醇和胺的气体，这些气体在感测蔬菜和水果的新鲜度方面是重要的，具有令人满意的响应性和优异的耐久性。 本发明的气体传感器包括：绝缘基板1; 设置在绝缘基板1上的一对薄膜电极2，以便在它们之间留下固定的空间; 包括金属氧化物的气体敏感膜3，其以基本上填充至少留在电极之间的固定空间的方式设置; 以及以覆盖暴露于外部的金属氧化物的表面的方式形成的催化活性保护层5。