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61. 发明专利

JPH0894639A APPARATUS AND METHOD FOR ANALYSIS 失效
公开(公告)号：JPH0894639A
公开(公告)日：1996-04-12
申请号：JP22931594
申请日：1994-09-26
申请人： FUJITSU LTD
发明人： SUGAMA AKIO
IPC分类号： G01N1/00 , G01N27/28 , G01N35/00 , G01N35/10
摘要： PURPOSE: To store a once-collected sample to be analyzed at the inside of an apparatus irrespective of whether a detector is in a normal state or in an abnormal state even when the apparatus is used under surroundings lowering a usage frequency, to analyze the sample, to enhance the accuracy of an analysis and to surely store a communication condition in a medical institution. CONSTITUTION: An analytical apparatus is provided with a sample acquisition means 11 which takes into a sample 17 to be analyzed, with a sample storage means 12 by which the sample 17 from the means 11 is stored temporarily and with an analytical means 13 which analyzes the sample 17 from the means 12 or the means 11. A liquid-sending means 14 by which a liquid-sending speed to send the sample 17 from the means 11 or the means 12 to the means 13 and a liquid-sending speed to send a solution 18, for calibration of the means 13, to the means 13 are adjusted is installed. A communication condition is stored in a programmable nonvolatile memory.

62. 发明专利

JPH06281617A SMALL-SIZED GLASS ELECTRODE AND ITS MANUFACTURE 失效
公开(公告)号：JPH06281617A
公开(公告)日：1994-10-07
申请号：JP7032893
申请日：1993-03-29
申请人： FUJITSU LTD
发明人： SUZUKI HIROAKI , SUGAMA AKIO
IPC分类号： G01N27/36 , B81B1/00 , B81C3/00
摘要： PURPOSE:To reduce the cost of a small-sized glass electrode by collectively forming an internal and external reference electrodes by sticking silicon substrates to both surfaces of a planar insulating substrates on which the internal and external reference electrodes are respectively formed. CONSTITUTION:An internal and external reference electrodes 3A and 3B are respectively formed on both surfaces of a glass substrate 1. A silicon substrate 2A has a recessed section formed by anisotropic etching at the part counterposed to the electrode 3A for storing an electrolyte and a glass film 5 is stuck to the top of the recessed section. Another silicon substrate 2B has a recessed section 4B formed by anisotropic etching at the part corresponding to the electrode 3B for storing the electrolyte and can be brought into electrical contact with the outside of the electrode through a salt bridge 18. The recessed sections of the substrates 2A and 2B are filled with saturated potassium chloride adjusted to a fixed pH value as the electrolyte 6. The potential variation between the electrodes 3A and 3B is checked while a sensitive section is dipped in a solution to be measured.

63. 发明专利

JPH06251840A SOCKET FOR SENSOR 失效
公开(公告)号：JPH06251840A
公开(公告)日：1994-09-09
申请号：JP3227093
申请日：1993-02-22
申请人： FUJITSU LTD
发明人： SUGAMA AKIO , SUZUKI HIROAKI
IPC分类号： H01R33/05 , B81B1/00
摘要： PURPOSE:To securely carry out electric connection with ease in a socket for a sensor which carries out electric connection of a small-sized sensor. CONSTITUTION:A groove 35 to be engaged with at least an electrode pad 32a of a sensor 3 is formed on a guide portion 33. A conductive connecting terminal 36, which is brought into contact with the electrode pad 32a for electric connection in engagement, is provided in a terminal portion 34 to be engaged with the guide portion 33.

64. 发明专利

JPH046455A OXYGEN ELECTRODE 失效
公开(公告)号：JPH046455A
公开(公告)日：1992-01-10
申请号：JP10638290
申请日：1990-04-24
申请人： FUJITSU LTD
发明人： SUGAMA AKIO , SUZUKI HIROAKI , TAKEI FUMIO , KOJIMA NAOMI
IPC分类号： G01N27/404
摘要： PURPOSE:To make it possible to replace electrolyte without skill and without the replacement of a gas transmitting film by forming an electrode of a cathode or a plate body wherein an acting electrode has holes, fixing a gas transmitting film on the outer surface of the plate body, and forming a unitary body. CONSTITUTION:A cathode 1 comprises a plate body wherein many holes 6 are formed. A gas transmitting film 3 is bonded, thermally fused and bonded or applied on the surface of the cathode 1. Thus, the cathode 1 and the transmitting film 3 are formed as a unitary body. Therefore, it is not necessary to replace the transmitting film 3 when an oxygen electrode is disassembled and assembled for replacing the electrolyte. Since the relative position relationship between the cathode 1 and the transmitting film 3 is not changed in this way, the characteristics of the oxygen electrode are not changed before and after the replacement of the electrolyte. Since the transmitting film 3 and the cathode 1 have the unitary structure, skill is not especially required in disassembling and assembling. Since the transmitting film 3 is fixed to the cathode 1 and reinforced, the breakdown of the transmitting film 3 itself is avoided, and the semipermanent use can be achieved.

65. 发明专利

JPH03262952A PRODUCTION OF SMALL-SIZED OXYGEN ELECTRODE 失效
公开(公告)号：JPH03262952A
公开(公告)日：1991-11-22
申请号：JP6007890
申请日：1990-03-13
申请人： FUJITSU LTD
发明人： SUGAMA AKIO , SUZUKI HIROAKI , TAKEI FUMIO , KOJIMA NAOMI
IPC分类号： G01N27/404
摘要： PURPOSE:To improve the efficiency of a stage for forming an anode and cathode by executing partial etching of gold or platinum and silver in this order, thereby forming the cathode of the gold or platinum and the anode of the silver on a semiconductor substrate. CONSTITUTION:A silicon oxide film 9 is deposited as an insulating film over the entire surface of the silicon substrate 1 having a hole formed by anisotropic etching and the rear surface is so formed as to be coated with a hydrophobic insulating film 13. A pair of the cathode and anode are deposited in the hole of the substrate 1. This cathode and anode are respectively partly extended to the outer side of the groove (hole). An electrolyte-contg. body 11 is filled in the hole of the substrate 1 and further the upper part of the hole is coated with a gas permeable film 12 in the form of covering the entire upper part of the substrate 1. The side surfaces and rear surface are also so formed that the film 12 is utilized as the insulating film.

66. 发明专利

JPH02187656A PRODUCTION OF SMALL-SIZED OXYGEN ELECTRODE 失效
公开(公告)号：JPH02187656A
公开(公告)日：1990-07-23
申请号：JP671189
申请日：1989-01-13
申请人： FUJITSU LTD
发明人： KOJIMA NAOMI , SUZUKI HIROAKI , SUGAMA AKIO , TAKEI FUMIO
IPC分类号： G01N27/404
摘要： PURPOSE:To allow a high-temp. sterilization treatment and to improve reliability by immersing a resist film substrate into electrolyte-contg. sodium alginate, then gelatinizing the aq. soln. in the hole of the substrate with a soln. mixture composed of electrolyte-contg. calcium chloride, metal alkoxide and hydrochloric acid. CONSTITUTION:The liquid is made to remain only in the hole by the repellency of the resist film 5 when the Si substrate 2 formed with the film 5 is immersed in the electrolyte-contg. sodium alignate and is gently pulled up. The liquid is gelatinized instantaneously when this substrate 2 is immersed into the aq. soln. of the electrolyte-contg. calcium chloride, metal alkoxide and hydrochloric acid. The volume change before and after the reaction is then substantially obviated and the electrolyte-contg. gel 6 having a flat surface is obtd. The easy packing of the porous body with which the volume change hardly arises in the hole of the substrate is possible in this way and the high-temp. sterilization treatment is enabled. The reliability is thus improved.

67. 发明专利

JPH0259655A SMALL-SIZED MICROORGANISM ELECTRODE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0259655A
公开(公告)日：1990-02-28
申请号：JP21110788
申请日：1988-08-25
申请人： FUJITSU LTD
发明人： SUZUKI HIROAKI , TAKEI FUMIO , SUGAMA AKIO , KOJIMA NAOMI
IPC分类号： G01N27/327
摘要： PURPOSE:To prevent the leakage of microorganisms by fixing the microorganisms together with an electrolyte to the gel in the outside part of the gas permeable electrode of an oxygen electrode and in the gas permeable film of the small-sized microorganism electrode. CONSTITUTION:A silicon substrate 1 formed by anisotropic etching is coated with a silicon oxide film 2 as an insulating film over the entire surface of the trapezoidal hole thereof and further the rear surface is coated with a hydrophobic insulating film 7. Two pieces of gold electrodes 3A, 3B are deposited in the hole of the substrate 1 and an electrolyte-contg. gel 6 is filled therein. Further, the upper part of the substrate 1 is coated with the gas permeable film 14 of the oxygen electrode in the form of covering the entire surface of the upper part. There is a microorganism immobilized layer film 8 thereon and the film is coated with a gas permeable film 15.

68. 发明专利

JPH0227254A SMALL-SIZED OXYGEN ELECTRODE 失效
公开(公告)号：JPH0227254A
公开(公告)日：1990-01-30
申请号：JP17697888
申请日：1988-07-18
申请人： FUJITSU LTD
发明人： SUZUKI HIROAKI , KOJIMA NAOMI , TAKEI FUMIO , SUGAMA AKIO
IPC分类号： G01N27/404 , G01N27/30
摘要： PURPOSE:To enable suppression of a drop in reproducibility and reliability attributed to evaporation of an electrolytic liquid by a method wherein a hole on the surface of a substrate is filled with a arginate gel containing the electrolytic liquid and the hole is covered with a gas permeable film to close. CONSTITUTION:A hole 5 is formed in an Si substrate 1 by an anisotropic etching and the entire surface thereof is covered with an SiO2 film 2 as insulation film. Gold electrodes 3A and 3B are applied in the hole 5 in a pair and parts thereof are extended to the outside of a groove separately. Then, a negative type photo resist is applied except for parts intended for the hole 5 and an electric contact. The substrate 1 is dipped into a sodium arginate aqueous solution (liquid A) and with the liquid A filling the hole 5, the substrate 1 is pulled up. Moreover, when it is immersed into a calcium chloride aqueous solution containing an electrolytic liquid, the liquid A is gelatinized instantaneously. Furthermore, the entire surface (except for an exposed part) of the top of the substrate 1 is covered with a gas permeable film 14. Thus, a gel 6 containing an electrolytic liquid of a fine volume with a flat surface is obtained with little change in volume before and after a reaction.

69. 发明专利

JPH0227251A SMALL ORGANISM ELECTRODE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0227251A
公开(公告)日：1990-01-30
申请号：JP17851688
申请日：1988-07-18
申请人： FUJITSU LTD
发明人： SUZUKI HIROAKI , KOJIMA NAOMI , TAKEI FUMIO , SUGAMA AKIO
IPC分类号： G01N27/327 , G01N27/30
摘要： PURPOSE:To enable selective fixing of a microorganism at a fine place by filling a hole formed on the surface of a substrate with a solution only containing material for formation of a gel to dip it into a solution containing a microorganism and a gelatinization promoting material for gelatinization. CONSTITUTION:A hole 5 is made on an Si substrate 1 by an anisotropic etching and gold electrodes 3A and 3B upto the surface of the substrate 1 from the bottom of the hole 5 are formed through an insulation film (SiO2) 2. A negative type photo resist 4 is covered excluding the part of the hole 5 and after the back of the substrate 1 is covered with a hydrophobic insulation film 7, the substrate 1 is immersed into an aqueous solution (liquid A) of sodium arginate containing an electrolyte to fill the inside of the hole 5 with the liquid A. Moreover, the substrate 1 in this condition is emmersed into a CaCl2 aqueous solution containing an independent nourishing germ with which the electrolyte and CO2 are made conductive to gelatinize 6 the liquid A. Then, after the CaCl2 aqueous solution unreacted and the microorganism are washed with water, the entire surface of the substrate 1 (except for a exposed part) is covered with a gas permeable film 14 thereby enabling the manufacture of a massproducible small CO2 electrode with a safe construction.

70. 发明专利

JPS6474442A ACETIC ACID SENSOR 失效
公开(公告)号：JPS6474442A
公开(公告)日：1989-03-20
申请号：JP23093687
申请日：1987-09-17
申请人： FUJITSU LTD
发明人： SUZUKI HIROAKI , TAKEI FUMIO , SUGAMA AKIO , KOJIMA NAOMI
IPC分类号： C12M1/34 , G01N27/30 , G01N27/327
摘要： PURPOSE:To miniaturize a sensor for determination of acetic acid and to enable the mass-production of said sensor by sealing an electrolyte-contg. material by a gas permeable film into a groove and incorporating an electrolyte and microorganism bacteria which utilize the acetic acid into said material. CONSTITUTION:This acetic acid sensor has a substrate 1 which has the groove for housing the material incorporated therein with the electrolyte, two electrodes 3, 4 which are formed via an insulating film 2 on this substrate 1 and extend respectively partly in the groove, and the gas permeable film 6 which coats the top surface of the groove. The electrolyte-contg. material is sealed in the groove by the gas permeable film 6 and contains the electrolyte and the microorganism bacteria which utilize the acetic acid. The acetic acid sensor is miniaturized by constituting the sensor in such a manner; in addition, the simultaneous mass production of the sensor is enabled and the production cost is reduced.

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