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51. 发明专利

JP2001302598A METHOD FOR PRODUCING AROMATIC POLYAMINE AND AROMATIC DIAMINE COMPOUND 失效
公开(公告)号：JP2001302598A
公开(公告)日：2001-10-31
申请号：JP2000128431
申请日：2000-04-27
申请人： RIKAGAKU KENKYUSHO
发明人： SHIGEMITSU YASURO , TAJIMA YUUSUKE , TAKEUCHI KAZUO
IPC分类号： C07D333/40 , C07C213/02 , C07C217/90 , C07D207/333 , C07D207/416 , C07D307/42 , C07D307/52 , C07D307/68
摘要： PROBLEM TO BE SOLVED: To provide a method for producing an aromatic diamine having a cis-conjugated dienyl group or phenyl group in high yield by reduction reaction under mild conditions from the corresponding aromatic polynitro compound and a new aromatic diamine compound. SOLUTION: This method for producing an aromatic polyamine having at least two amino groups comprises reducing an aromatic polynitro compound having at least two nitro groups by indium metal in the presence of an aqueous solution of a quaternary ammonium salt in a aprotic polar solvent. This aromatic diamine compound is represented by the following formula [3] (wherein either one of R13, R14, R15 and R16 is a monovalent organic group containing a cis-conjugated dienyl group or phenyl group and the others are each hydrogen, a 1-20C alkyl group or 1-20C alkoxyl group; Ph is phenylene group).

52. 发明专利

JP2001228076A CHARGED FINE PARTICLE MEASURING INSTRUMENT 失效
公开(公告)号：JP2001228076A
公开(公告)日：2001-08-24
申请号：JP2000037940
申请日：2000-02-16
申请人： RIKAGAKU KENKYUSHO
发明人： ISOMURA SHOHEI , SETSU KOSHU , OKADA YOSHIKI , TAKEUCHI KAZUO , OKUYAMA KIKUO , SHIMADA MANABU
IPC分类号： G01R29/24 , G01N15/06 , G01N27/60
摘要： PROBLEM TO BE SOLVED: To provide a charged fine particle measuring instrument, capable of highly accurately measuring the number concentration of fine particles extremely low in number concentration, suspended in gas under pressure conditions ranging from atmospheric pressure to a vacuum. SOLUTION: When gas-containing charged fine particles is introduced from a gas inlet pipe 3, gas flows in the internal space of a center electrode 6 by the pressure difference between the gas inlet pipe 3 and an exhaust pipe 4 and discharged to the outside from the exhaust pipe 4 through the ion collector 7 of the center electrode 6. At this time, the gas flowing in the internal space of the center electrode 6 collides with the ion collector 7, and a part is repelled to be discharged to the internal space of the center electrode 6 to collide with an ion collector 11. The charged fine particles, contained in the gas collide with the metal screens 9, 9, 13 of the ion collectors 7, 11, to discharge charge and the current generated as a result flows into a preamplifier 19 from the ion collectors 7, 11 through a support stand 15. This weak current is amplified by the preamplifier 19 to be measured by an ammeter 20.

53. 发明专利

JP2000002722A SMALL CURRENT METER 失效
公开(公告)号：JP2000002722A
公开(公告)日：2000-01-07
申请号：JP16732398
申请日：1998-06-15
申请人： RIKAGAKU KENKYUSHO
发明人： TAKEUCHI KAZUO , ISOMURA SHOHEI , HIRASAWA SEIICHI , OKUYAMA KIKUO
IPC分类号： G01R19/00
摘要： PROBLEM TO BE SOLVED: To provide a small current meter capable of reducing effectively the noise in a current to be measured. SOLUTION: A bar-shaped member 16 is installed projectingly from the bottom surface 18a of a plate 18 of a Faraday cup 10, and a receiving part 21 is installed on the upper surface 25a of an outer box 25 of a preamplifier device 20. In this case, external threads 16a are carved on the outer surface of an end part of the bar-shaped member 16, projecting downward from a fixed ring 17, and internal threads 21a are carved on the inner surface of the receiving part 21, and the bar-shaped member 16 is connected to the receiving part 21 by thread connection. A shield ring 22, encircling the connection part between the bar-shaped member 16 and the receiving part 21, is interposed between the bottom surface 18a of the plate 18 and the upper surface 25a of the outer box 25, to thereby shield an electromagnetic wave entering the connection part between the bar-shaped member 16 and the receiving part 21.

54. 发明专利

JPH10288602A FINE PARTICLE ANALYZING DEVICE AND ITS METHOD 失效
公开(公告)号：JPH10288602A
公开(公告)日：1998-10-27
申请号：JP9732797
申请日：1997-04-15
申请人： RIKAGAKU KENKYUSHO
发明人： TAKEUCHI KAZUO , OKUYAMA KIKUO , KYODO TSUNEHISA , SAKATA KENICHI
IPC分类号： G01N27/62 , G01N15/02 , G01N27/60 , G01N27/64 , G01N27/68
摘要： PROBLEM TO BE SOLVED: To enable the obtaining of the diameters, numbers, constituents of fine particles on the order of nanometers quantitatively through the use of a time-of-flight mass spectrometer. SOLUTION: Fine particles in the air drawn by a sampling device 1 are charged by a charging device 2. Next, the fine particles charged at the charging device 2 are each classified diameter by diameter by a differentiating electric mobility classifier (DMA) 3. At this time, the diameters of the fine particles which are classified by the DMA 3 are periodically changed. Then fine particles extracted out of the DMA 3 are sequentially introduced to a time-of-flight mass spectrometer (TOF-MS) 4 to analyze the mass of the fine particles and to integratingly process the results measured by the TOF-MS 4 for every particles of the same diameter on the basis of the sweep data of applied voltages at the DMS 3.

55. 发明专利

JPH10288601A DEVICE AND METHOD FOR ANALYZING FINE GRAIN 失效
公开(公告)号：JPH10288601A
公开(公告)日：1998-10-27
申请号：JP9732097
申请日：1997-04-15
申请人： RIKAGAKU KENKYUSHO
发明人： TAKEUCHI KAZUO , OKUYAMA KIKUO , KYODO TSUNEHISA , SAKATA KENICHI
IPC分类号： G01N27/64 , G01N15/02 , G01N27/62 , G01N27/68
摘要： PROBLEM TO BE SOLVED: To make it possible to analyze the particle diameter, the number of particles, components and like quannitatively by classifying the particles charged with a charging device, and measuring the components and the quantities for every classified particle. SOLUTION: The fine grains such as particles, clusters, mist and the like floating in an atmospheric space are withdrawn with a sampling device 1. The individual particle is changed by a radiation such as the corona discharge or americium isotope ( Am) and the like with a charging device 2. Then one charged particles are classified for every particle diameter in accordance with the electric mobility by a differentialtype electric-mobility classifier(DME) 3. Then, the components and the amounts are measured for every particle classified by a high-frequency conduction-coupling plasma mass spectrometer (ICP-MS) 4. The number of the particles is measured in a Faraday-cup ammeter (FCE) 5.

56. 发明专利

JPH10288600A DIFFERENTIAL TYPE ELECTRIC MOBILITY MEASURING UNIT 失效
公开(公告)号：JPH10288600A
公开(公告)日：1998-10-27
申请号：JP9905897
申请日：1997-04-16
申请人： RIKAGAKU KENKYUSHO
发明人： TAKEUCHI KAZUO , OKUYAMA KIKUO
IPC分类号： G01N27/62 , G01N15/02
摘要： PROBLEM TO BE SOLVED: To provide a differential electric mobility measuring unit capable of easily measuring the grain size of fine grains distributed in a wide range at a low cost. SOLUTION: This differential electric mobility measuring unit 1 is provided with a base section 4, an envelope body 6 movably connected to the base section via an expansion body 5, and a central rod 7 connected to the base section 4 and extended toward the inside of the envelope body 6. The envelope body 6 has one slit 8 for drawing charged fine grains to the inside, and the central rod 7 has the other slit 9 for extracting the charged fine grains drawn from one slit 8 to the outside. The envelope body 6 and central rod 7 are made of a conductor, a variable-voltage source 12 is connected to the central rod 7, and the envelope body 6 is grounded. The base section 4 and envelope body 6 are movably connected, and the distance between one slit 8 and the other slit 9 can be changed while the inside of the envelope body 6 is maintained at the sealed state by the expansion body 5.

57. 发明专利

JPH0366927B2 失效
公开(公告)号：JPH0366927B2
公开(公告)日：1991-10-21
申请号：JP12676684
申请日：1984-06-20
申请人： RIKAGAKU KENKYUSHO
发明人： TAKEUCHI KAZUO , INOE ICHIRO , MAKIIDE YOSHIHIRO , TASHIRO HIDEO , TAKAMI MICHIO
IPC分类号： B01D59/34

58. 发明专利

JPH03215309A PRODUCTION OF FINE PARTICLE OF BORON CARBIDE 失效
公开(公告)号：JPH03215309A
公开(公告)日：1991-09-20
申请号：JP656290
申请日：1990-01-16
申请人： RIKAGAKU KENKYUSHO
发明人： OYAMA TOSHIYUKI , TAKEUCHI KAZUO
IPC分类号： B01J19/12 , C01B31/36
摘要： PURPOSE:To improve quality of fine particles of boron carbide by irradiating a mixed gas containing boron halide, hydrocarbon and H2 or a mixed gas containing boron halide, CCl4 and H2 with laser beam. CONSTITUTION:An irradiation reactor 14 is evacuated, charged with a mixed gas 15 of a boron halide such as BBr2/a hydrocarbon such as methane/ H2=(2-10)/1/

59. 发明专利

JPH03153511A METHOD FOR FINELY FLAKING GRAPHITE 失效
公开(公告)号：JPH03153511A
公开(公告)日：1991-07-01
申请号：JP29267389
申请日：1989-11-10
申请人： RIKAGAKU KENKYUSHO , HITACHI POWDERED METALS
发明人： KUGA YOSHIHISA , ENDO SHIGEHISA , CHIYODA HIROYOSHI , TAKEUCHI KAZUO
IPC分类号： C01B31/00 , C01B31/04
摘要： PURPOSE:To obtain fine flaky particles having superior anisotropy by intercalating a guest substance between the layers of graphite to form an intercalation compd. and crushing this compd. in vacuum. CONSTITUTION:A guest substance such as K, K-NH3, Br, FeCl3 or SbCl5 is intercalated between the layers of graphite to form an intralaminar compd. This compd. is finely flaked by crushing in vacuum or in an atmosphere of an inert gas or dry air optionally after expansion by rapid heating. When the resulting fine flaky graphite is mixed with a solvent, oil, etc., and used to form a graphite coating film, a long service life and high reliability are obtd.

60. 发明专利

JPH02297517A CONTACT LENS 失效
公开(公告)号：JPH02297517A
公开(公告)日：1990-12-10
申请号：JP11938989
申请日：1989-05-12
申请人： RIKAGAKU KENKYUSHO
发明人： TAKEUCHI KAZUO
IPC分类号： G02C7/04 , G02F1/13
摘要： PURPOSE:To constitute this contact lens so that it can be found out easily by allowing the light to transmit through when it is loaded on an eye and a temperature is held near the body heat, and allowing the lens to be opaque when it is taken off from the eye at the time of loss, etc., and when its temperature falls to the atmospheric temperature. CONSTITUTION:The film 2 of a liquid crystal compound having a temperature characteristic by which it causes a phase transition at some temperature Tc being lower than the body heat of a man and higher than the atmospheric temperature, and becomes transparent and opaque at the time of >=Tc and at the time of

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