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公开(公告)号：AU2002252042A1
公开(公告)日：2002-09-24
申请号：AU2002252042
申请日：2002-03-06
Applicant: KEMET ELECTRONICS CORP
Inventor： MELODY BRIAN J , LESSNER PHILIP M , HARRINGTON ALBERT K , KINARD JOHN T , WHEELER DAVID A
Abstract: A method of anodizing an aluminum substrate comprising heating the substrate to a first temperature of 200° C. to about 380° C.; suspending the substrate into a first electrolyte and applying a first anodizing current to the first electrolyte; rinsing the substrate; heating the substrate to a second temperature of 200° C. to about 380° C.; and suspending the substrate into a second electrolyte and applying a second anodizing current to the second electrolyte, wherein the first electrolyte and second electrolyte each comprise an aqueous solution of at least one salt of alpha-hydroxy acid.
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公开(公告)号：CZ2001785A3
公开(公告)日：2001-08-15
申请号：CZ2001785
申请日：1999-07-02
Applicant: KEMET ELECTRONICS CORP
Inventor： LESSNER PHILIP M , SU TSUNG-YUAN , RAJASEKARAN VEERIYA , HAHN RANDOLPH S
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公开(公告)号：AU1441200A
公开(公告)日：2000-04-17
申请号：AU1441200
申请日：1999-09-29
Applicant: KEMET ELECTRONICS CORP
Inventor： HAHN RANDOLPH S , LESSNER PHILIP M , RAJASEKARAN VEERIYA
Abstract: The adhesion of a conductive polymer film to an oxidized porous pellet anode is improved by the incorporation of a silane coupling agent in the polymer impregnating solution. The incorporation of the silane coupling agent also decreases leakage current and dissipation factor. Suitable silanes are those of the general formula (R1-R3)-Si-(OR2)3. Each of R2 and R3 is a C1-C6 alkyl group such as methyl, ethyl, or propyl. R1 can be chosen from a wide variety of organic functional groups such as epoxy, glycidoxy, amino, and pyrrole. The most preferred silane is 3-glycidoxypropyltrimethoxysilane.
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公开(公告)号：DE112015004199T5
公开(公告)日：2017-06-14
申请号：DE112015004199
申请日：2015-09-15
Applicant: KEMET ELECTRONICS CORP
Inventor： HUSSEY STEVE C , CISSON JIMMY DALE , LESSNER PHILIP M , FREEMAN YURI
Abstract: Ein verbesserter Kondensator (10) und ein Verfahren zur Bildung eines verbesserten Kondensators (10) werden ausgeführt. Das Verfahren umfasst das Bilden einer Tantalanode (11) aus einem Tantalpulver mit einer Pulverladung von nicht mehr als 40.000 µC; Bilden eines Dielektrikums (12) an der Anode durch anodische Oxidation bei einer Formierungsspannung von nicht mehr als 100V; und Bilden einer leitfähigen Polymerkathode (13) auf dem Dielektrikum (12), wobei der Kondensator (10) eine Durchbruchspannung aufweist, die höher ist als die Formierungsspannung.
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公开(公告)号：DE112014000883T5
公开(公告)日：2015-11-05
申请号：DE112014000883
申请日：2014-02-19
Applicant: KEMET ELECTRONICS CORP
Inventor： HAHN RANDOLPH , POLTORAK JEFFREY , CHACKO ANTONY , KINARD JOHN T , SUMMEY BRANDON , LESSNER PHILIP M
IPC: H01G9/012
Abstract: Ein verbesserter Kondensator wird bereitgestellt, wobei der verbesserte Kondensator einen verbesserten ESR aufweist. Der Kondensator weist eine genutete Anode und einen Anodendraht auf, der sich von der genuteten Anode erstreckt. Ein Dielektrikum ist auf der genuteten Anode. Eine konforme Kathode ist auf dem Dielektrikum und eine überzogene Metallschicht ist auf der Kohlenstoffschicht.
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Patent Agency Ranking
公开(公告)号：DE69821181T2
公开(公告)日：2004-07-01
申请号：DE69821181
申请日：1998-09-18
Applicant: KEMET ELECTRONICS CORP
Inventor： KINARD JOHN T , MELODY BRIAN J , LESSNER PHILIP M
Abstract: An electrolytic solution comprising glycerine and dibasic potassium phosphate. The electrolytic solution has a water content of less than 1000 ppm and is prepared by mixing the glycerine and the dibasic potassium phosphate and then heating to about 150 to 180°C for about 1 to 12 hours. A method of anodizing a metal comprising forming a film on the metal with an electrolytic solution comprising glycerine and dibasic potassium phosphate. The metal is preferably a valve metal, such as tantalum, and the film is formed at a temperature of 150°C or higher.
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公开(公告)号：GB2371811A
公开(公告)日：2002-08-07
申请号：GB0210158
申请日：2000-09-25
Applicant: KEMET ELECTRONICS CORP
Inventor： MELODY BRIAN J , KINARD JOHN T , LESSNER PHILIP M
Abstract: An electrolyte comprising water, an organic solvent selected from the group consisting of a polyethylene glycol, a polyethylene glycol monomethyl ether and mixtures thereof, and a sufficient amount of alkali metal salt of a weak organic acid, so that the electrolyte has a resistivity below about 250 ohm-cm/80 {C. A method for differential anodizing porous valve metal body comprising the steps of: anodizing the bodies in a first electrolyte where the cathode surface is placed within an inch of but not in contact with the anode bodies, rinsing the bodies in deionized water, and re-anodizing the bodies in a second electrolyte, where the first electrolyte comprises water, an organic solvent selected from the group consisting of a polyethylene glycol, a polyethylene glycol monomethyl ether and mixtures thereof, and a sufficient amount of alkali metal salt of a weak organic acid so that the first electrolyte has a resistivity below about 250 ohm-cm/80 {C.
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公开(公告)号：GB2360129A
公开(公告)日：2001-09-12
申请号：GB0108966
申请日：1999-09-29
Applicant: KEMET ELECTRONICS CORP
Inventor： HAHN RANDOLPH STEPHEN , LESSNER PHILIP M , RAJASEKARAN VEERIYA
Abstract: The adhesion of a conductive polymer film to an oxidized porous pellet anode is improved by the incorporation of a silane coupling agent in the polymer impregnating solution. The incorporation of the silane coupling agent also decreases leakage current and dissipation factor. Suitable silanes are those of the general formula (R 1 -R 3 )-Si-(OR 2 ) 3 . Each of R 2 and R 3 is a C 1 -C 6 alkyl group such as methyl, ethyl, or propyl. R 1 can be chosen from a wide variety of organic functional groups such as epoxy, glycidoxy, amino, and pyrrole. The most preferred silane is 3-glycidoxypropyltrimethoxysilane.
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29.发明专利
公开(公告)号：GB2357903A
公开(公告)日：2001-07-04
申请号：GB0105524
申请日：1999-08-31
Applicant: KEMET ELECTRONICS CORP
Inventor： LESSNER PHILIP M , SU TSUNG-YUAN , MELODY BRIAN J , KINARD JOHN T , RAJASEKARAN VEERIYA
Abstract: The present invention relates to a method for making a solid electrolytic capacitor having a low equivalent series resistance by impregnating a porous capacitor pellet with conductive polymer. An oxidized pellet is dipped in a high concentration conductive polymer solution to deposit the polymer in doped (conductive) form. The solution also contains a crosslinking agent to prevent redissolution of the polymer when the pellet is re-dipped. After dipping, the solvent in the polymer solution is evaporated and a conductive film formed .In order to evaporate the solvent quickly, the solvent should have a boiling point of 80-220 {C and preferably a boiling point of 100-150 {C. The conductive polymer film has a low resistivity (less than 1 ohm-cm, preferably less than 0.2 ohm-cm).
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公开(公告)号：GB2337996A
公开(公告)日：1999-12-08
申请号：GB9912181
申请日：1999-05-25
Applicant: KEMET ELECTRONICS CORP
Inventor： MELODY BRIAN J , KINARD JOHN T , LESSNER PHILIP M
Abstract: An electrolytic solution comprises glycerine and an organic salt, an inorganic salt, or mixtures thereof, and has a pH of less than about 7. The electrolytic solution has a water content of less than 0.1 weight percent and is prepared by mixing the glycerine and the salt or their acidic and basic ionogen components and heating to above 150‹C. A method of anodizing a metal comprises forming a film on the metal with said electrolytic solution. The metal is preferably a valve metal, such as tantalum, and the film is formed at a temperature of 150‹C or higher. The salt is sodium p-toluene sulfonate, potassium hydrogen sulfate or monobasic potassium tartrate; or alternately the salt may be produced in situ from acids selected from p-toluene sulfonic acid, tartaric acid or sulfuric acid by reaction with potassium acetate, sodium bicarbonate or potassium formate.
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