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1. 发明专利

JPH05306983A 失效
公开(公告)号：JPH05306983A
公开(公告)日：1993-11-19
申请号：JP20581191
申请日：1991-08-16
申请人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI , YOKOGAWA ELECTRIC CORP
发明人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI , MATSUNO GEN , MIKURIYA KENTA
IPC分类号： G01N5/02
摘要： PURPOSE:To make an odorant sensor to be easily manufactured, to quickly respond, and to be able to use various kinds of lipids and, at the same time, to have chemical and mechanical durability by using a film made of the mixture of a high-molecular compound and lipid for the odorant molecule adsorbing film of the sensor. CONSTITUTION:A crystal resonator 11 is a piezoelectric element composed of, for example, an AT-cut quartz substrate 11a and gold electrodes 11b formed on both side faces of the substrate 11a. A film 12 of the mixture of polyvinyl chloride and dioctyl phosphate (lipid), namely, an odorant molecule adsorbing film 12 having an average film thickness of about 0.2mum is formed on the electrode 11b on one side face of the resonator 11. When the film 12 adsorbs odorant molecules, the resonance frequency of the film 12 is increased by the adsorbed amount of the molecules. As the resonance frequency of the film 12 increases, the resonance frequency of the resonator 11 decreases and, when the resonance frequency of the resonator 11 is measured, the odor can be measured. Since the mixture of the high-molecular compound and lipid is used for the film 12 in such a way, the film 12 can be manufactured by a spin coating method, etc., and even such a lipid that cannot be used for manufacturing an LB or bimolecular film can be used.

2. 发明专利

JPH0545327A ODORANT SENSOR 失效
公开(公告)号：JPH0545327A
公开(公告)日：1993-02-23
申请号：JP20823991
申请日：1991-08-20
申请人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI , YOKOGAWA ELECTRIC CORP
发明人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI , MATSUNO GEN , MIKURIYA KENTA , UEDA TOSHITSUGU
IPC分类号： G01N27/06 , G01N27/327
摘要： PURPOSE:To realize an odorant sensor which is solid and long in service life and able to detect odorant molecules with high sensitivity. CONSTITUTION:In this odorant sensor for detecting various kinds of odor by utilizing the sensitivity of a lipid membrane 3, an electrode part 4 of the sensor is constituted of an electrode 2 to detect the impedance or potential of the membrane and tone lipid membrane 3 composed of lipid molecules 1 bonded to the surface of the electrode by the bonding energy larger than the physical adsorption. The lipid molecules 1 are bonded with the electrode 2 by the utilization of bonding between thiol radical introduced to a terminal of one or a plurality of hydrophxobic chains of tone lipid molecules 1 and a metal such as gold or the like.

3. 发明专利

JPH04181150A LIPID FILM TYPE ODOR SENSOR 失效
公开(公告)号：JPH04181150A
公开(公告)日：1992-06-29
申请号：JP30902790
申请日：1990-11-15
申请人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI , YOKOGAWA ELECTRIC CORP
发明人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI , UEDA TOSHITSUGU , MIKURIYA KENTA , MATSUNO GEN
IPC分类号： G01N27/12 , G01N27/414
摘要： PURPOSE:To highly sensitively detect odorant by forming a thin layer of water or some kind of aqueous solution on a lipid film formed on a gate of an ion- sensitive or ion-insensitive FET. CONSTITUTION:When odor molecule in the air is solved into a layer 3 comprising water or some kind of aqueous solution of a lipid film type odor sensor 101, an odor molelcule is adsorbed by a lipid film 2 and a film structure or the like of a lipid molecule is varied so that surface potential is changed. That is, bias voltage is applied only by surface potential generated on a gate 17 of an ion-insensitive FET 1. Further the FET 1 is constantly applied by drain.source voltage and drain current. That is, the FET 1 always operates at the same operating point, and if bias voltage is applied to the gate 17, the point is shifted by a value equal to the bias voltage with voltage between a reference in voltage is output from an output terminal 106.

4. 发明专利

JPH07159304A ODOR SENSOR 失效
公开(公告)号：JPH07159304A
公开(公告)日：1995-06-23
申请号：JP30494093
申请日：1993-12-06
申请人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI , YOKOGAWA ELECTRIC CORP
发明人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI , MATSUNO GEN , MIKURIYA KENTA
IPC分类号： G01N5/02
摘要： PURPOSE:To detect many odorous substances by forming an odorous-substance adsorption film which is constituted of polyvinyl chloride, a plasticizer and a lipid on the side face of a quartz oscillator or a surface-wave elastic element. CONSTITUTION:Gold electrodes 3a, 3b are formed on both faces of an AT-Cut quartz substrate 2, terminals 5a, 5b are attached, and an odorous-substance adsorption film 4 is formed on the side face of the electrode 3a on the opposite side of the substrate 2. The adsorption film 4 is formed to have film thickness of about 0.2mum, and it is formed by mixing polyvinyl chloride, a plasticizer and a lipid. The ordor sensor 1 which is formed in this manner is oscillated at a resonance frequency by an oscillator. Then, when an odorous substance as an object to be detected is adsorbed by the adsorption film 4, the mass of the adsorption film 4 is changed, and the resonance frequency of the sensor 1 is changed. Consequently, a change in the frequency is measured, and the odorous substance is detected. In this case, when the combination of the polyvinyl chloride, the plasticizer and the lipid as components of thr absorption film 4 is changed, many odorous substances can be detected.

5. 发明专利

JPH075147A TASTE SENSOR AND ORGANIC FILM THEREFOR 失效
公开(公告)号：JPH075147A
公开(公告)日：1995-01-10
申请号：JP26954192
申请日：1992-09-12
申请人： ANRITSU CORP , SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI
发明人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI , IKEZAKI HIDEKAZU , HIGASHIKUBO RIEKO , SATO KATSUSHI
IPC分类号： G01N27/333
摘要： PURPOSE:To obtain taste information, especially of sweet taste, in which measurement error is suppressed by arranging a molecule group of bitter taste substance while covering the entire surface of an electrode on the side coming into contact with a liquid to be measured so that sum of charges at the hydrophilic part directing toward the contacting part will be zero. CONSTITUTION:Molecule groups 61, 62 of a bitter taste substance are arranged on a base film 9 formed on a substrate 1 while directing the hydrophilic part outward over the entire surface of an electrode 2 on the side coming into contact with a liquid to be measured thus forming a single molecule film. In this regard, the molecule group 61 to be charged positive in an aqueous solution is mixed with the molecule group 62 to be charged negative at such ratio as the total charge will be zero thus substantially nullifying the reaction of an electrolyte, for detecting the acid and salty tastes, on the anion and cation. Since a taste sensor having conditioned surface charge is employed, taste information is increased and the sensor can be employed effectively even in case of sweet taste. For example, the weight of sweet taste term is increased in the simultaneous equations of taste in order to suppress measurement error of sweet taste.

6. 发明专利

JPH0464053A DETECTING METHOD OF TASTE 失效
公开(公告)号：JPH0464053A
公开(公告)日：1992-02-28
申请号：JP17658490
申请日：1990-07-04
申请人： ANRITSU CORP , SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI
发明人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI , IKEZAKI HIDEKAZU , TACHIKAWA RIEKO
IPC分类号： G01N27/416 , G01N33/00 , G01N33/14 , G01N33/487
摘要： PURPOSE:To make reproducibility of a measured value excellent and to enable attainment of a taste standing comparison with the one of a human being, by a method wherein a taste sensor is immersed sufficiently in a reference liquid approximating to a sample liquid to be measured, a stimulus is given in each measurement, and measurement is conducted when an inner-membrane potential changes slowly after a surface potential becomes stable. CONSTITUTION:After a taste sensor using a lipid membrane is immersed for a sufficient time in a reference liquid which is a water solution of a substance of a basic taste of the same kind with a sample liquid to be measured and approximates thereto in a taste, a stimulus is given to the sensor by putting it in and taking it out of a reference liquid for washing, and then measurement is made by a reference liquid for measurement. This operation is repeated and thereby the sample liquid is made stable so that a difference between them be a prescribed value or below. After the washing is conducted likewise by a sample liquid to be measured which is used for washing, subsequently, measurement is executed by the sample liquid for measurement. In this way, nonuniformity is reduced by lessening the difference between the reference liquid and the sample liquid to be measured, a measuring time is shortened by conducting measurement when an inner-membrane potential changes slowly after a surface potential becomes stable and, in addition, the change of the inner-membrane potential. can be canceled by repetition of the measurement. By this method, measurement can be conducted with excellent reproducibility.

7. 发明专利

JPH03163351A TASTE DETECTING SYSTEM 失效
公开(公告)号：JPH03163351A
公开(公告)日：1991-07-15
申请号：JP30375089
申请日：1989-11-22
申请人： ANRITSU CORP , SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI
发明人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI , IKEZAKI HIDEKAZU
IPC分类号： G01N33/483 , G01N27/327 , G01N27/416
摘要： PURPOSE:To make it possible to evaluate and analyze taste objectively and automatically by receiving a plurality of outputs from taste sensors, and outputting the intensities of plural kinds of basic tastes from a neuron circuit network. CONSTITUTION:The formation of a taste detecting system utilizing the response characteristic for the output of a state sensor using a lipid film, e.g. the basic material of taste in a film potential, is intended. Then, the response characteristics when a plurality of the basic materials of tastes are mixed are classified. These response characteristics are stored in a neuron network for leading. As the leading means, the samples of the basic testers and the mixed tastes whose contents are known are prepared. The output of a sensor for each solution is inputted into the neuron network. The coupling coefficient between the neuron elements in the neuron network is changed so that the error between the output at this time and the intended output becomes zero. Then, the arbitrary taste (the mixed taste and the taste having the different concentration) formed of the basic material of the taste in detected quantatively.

8. 发明专利

JPH04303755A TASTE SENSOR 失效
公开(公告)号：JPH04303755A
公开(公告)日：1992-10-27
申请号：JP9315791
申请日：1991-03-29
申请人： ANRITSU CORP , SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI
发明人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI , IKEZAKI HIDEKAZU , HIGASHIKUBO RIEKO
IPC分类号： G01N27/416
摘要： PURPOSE:To realize a taste sensor using a single monomolecular film such as amphiphilic material whose time characteristic is excellent and quality dispersion is less. CONSTITUTION:This sensor comprises a monomolecular film 3 such as an amphiphilic material, a base film 2 for supporting the monomolecular film 3 such as amphiphillc material, a substrate 1 whose surface is covered with the base film 2, an electrode 5 which is inserted into a hole penetrating the substrate 1 and measures a film potential and a buffer layer 4 which is provided between the base film 2 and the electrode 5.

9. 发明专利

JPH0354446A TASTE SENSOR AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0354446A
公开(公告)日：1991-03-08
申请号：JP19081989
申请日：1989-07-24
申请人： ANRITSU CORP , SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI
发明人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI
IPC分类号： G01N27/327 , G01N27/333 , G01N27/416 , G01N33/00 , G01N33/487
摘要： PURPOSE:To provide a function similar to the taste of a human being by forming a film using the principal constituent of a taste receptive film said to be lipid as a material and detecting the electrical characteristics possessed by the film. CONSTITUTION:This sensor is constituted of a lipidic molecule group having a hydrophobic region extending in the longitudinal direction in atomic arrangement and the hydrophilic region present in the atomic arrangement so as to extend in the longitudinal direction and the film having the matrix capable of receiving the lipidic molecule group on the surface thereof. At least a part of the lipidic molecule group is received in the matrix of the film so that the hydrophilic region thereof is arranged to the surface of the film. Then, a film is formed by using the pricipal constituent of a taste receptive film said to be lipid as a material and the electrical characteristics possessed by the film are detected. By this method, the function similar to the taste of a human being can be provided.

10. 发明专利

JP2001004583A TASTE SENSOR 失效
公开(公告)号：JP2001004583A
公开(公告)日：2001-01-12
申请号：JP2000159270
申请日：2000-05-29
申请人： ANRITSU CORP , SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI
发明人： SANTO KAORU , TOKO KIYOSHI , HAYASHI KENJI , IKEZAKI HIDEKAZU , HIGASHIKUBO RIEKO , SATO KATSUSHI , MINATOGUCHI TADASHI , KOBAYASHI YUZURU , TAKASUGI KAZUHIRO
IPC分类号： G01N27/404 , G01N27/333 , G01N27/416
摘要： PROBLEM TO BE SOLVED: To fully exhibit the function of a taste sensor for a long time by installing a through hole that is open to the fresh air at an electrode or near it, allowing gas to escape through a film for detecting taste into the fresh air through the through hole, and preventing the gas from being accumulated between the film and the electrode. SOLUTION: A cylinder made of acryl with a thickness of approximately 3 mm is used as a substrate 1. One end of the cylinder is covered with a lid 1a made of an acryl plate so that no solution to be measured enters the cylinder. A hole 2 (3 mmϕ) is punched into a substrate 1, a round rod made of silver with a through hole 6 of 1 mmϕ inserted axially into the hole 2 as an electrode 3. Terahydrofuran is dripped onto one end of the electrode 3 and an acryl plate around it as an adhesive to paste a square film 4 for detecting taste whose one side is approximately 10 mm and is prepared in advance so that the electrode 3 is covered. A lead wire 5 is soldered to the other end of the electrode 3. Gas through the film 4 for detection passes through the inside of the acryl cylinder as the substrate 1 and escapes into the fresh air. In this manner, the created taste sensor is capable of measurement for one month.

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