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Fujitsu
Satoru Fujitsu, Yamaguchi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100029541 | METHOD OF RETAINING THE QUALITY OF 2-METHYL-3-(3,4-METHYLENEDIOXYPHENYL)PROPANAL AND PROCESS FOR PRODUCING THE SAME - The present invention relates to [1] a method for keeping a quality of 2-methyl-3-(3,4-methylenedioxyphenyl)propanal useful as a perfume, which comprises incorporating from 50 to 3000 ppm of 1-acetyl-3,4-methylenedioxybenzene in the 2-methyl-3-(3,4-methylenedioxyphenyl)propanal; [2] a process for producing 2-methyl-3-(3,4-methylenedioxyphenyl)propanal having a content range from 50 to 3000 ppm of 1-acetyl-3,4-methylenedioxybenzene; and [3] 2-methyl-3-(3,4-methylenedioxyphenyl)propanal having a content range from 50 to 3000 ppm of 1-acetyl-3,4-methylenedioxybenzene. | 02-04-2010 |
| 20100121085 | 2-METHYL-3-(3,4-METHYLENEDIOXYPHENYL)PROPANAL, AND METHOD FOR PRODUCTION THEREOF - Disclosed are: (1) a method for producing 2-methyl-3-(3,4-methylenedioxyphenyl)propanal, which comprises the step of providing a reaction mixture containing 1-acetoxy-2-methyl-3-(3,4-methylenedioxyphenyl)-1-propene by a process for reacting 1,2-methylenedioxybenzene with 2-methyl-3,3-diacetoxypropene or a process for reacting 1,2-methylenedioxybenzene, methacrolein and acetic anhydride with one another; subjecting the reaction mixture to hydrolysis or transesterification with an alcohol to provide a reaction mixture containing 2-methyl-3-(3,4-methylenedioxyphenyl)propanal; and purifying by distilling the reaction mixture, wherein a high boiling point compound contained in the reaction mixture is removed by a specific procedure; and (2) 2-methyl-3-(3,4-methylenedioxyphenyl)-propanal produced by the method, which has an acetic acid content of a less than 40 ppm, is useful as a perfume, and has a high purity. | 05-13-2010 |
| 20110065913 | PROCESS FOR PRODUCING LAUROLACTAM - The present invention relates to a process for producing laurolactam from cyclododecanone oxime by liquid-phase rearrangement reaction using trichlorotriazine as a rearrangement catalyst. The present invention can provide a process which can solve the problem of termination of the reaction at a certain conversion, can prevent an inactive precipitate generated from trichlorotriazine from precipitating in the course of the reaction process, and can remove an inactive precipitate, an active intermediate and a residual catalyst. | 03-17-2011 |
Satoshi Fujitsu, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20100088515 | SCRAMBLE KEY MANAGEMENT UNIT, SCRAMBLE KEY MANAGEMENT INFORMATION TRANSMITTING UNIT, METHOD FOR SCRAMBLE KEY OUTPUT MANAGEMENT, SCRAMBLE KEY MANAGEMENT PROGRAM, LICENSE INFORMATION MANAGEMENT UNIT, LICENSE MANAGEMENT INFORMATION TRANSMITTING UNIT, METHOD FOR LICENSE INFORMATION OUTPUT MANAGEMENT, AND LICENSE INFORMATION MANAGEMENT PROGRAM - A low cost scramble key management apparatus which enables to manage a scramble key based on individual contract information and to ensure security in narrow band broadcasting. The scramble key management apparatus | 04-08-2010 |
Shun Fujitsu, Saitama JP
| Patent application number | Description | Published |
|---|---|---|
| 20110067367 | AIR CLEANER APPARATUS - An air cleaner apparatus includes a lid that covers an opening formed in an air cleaner box is provided with an intake port communicating with the opening. In addition, a regulator is attached to an upper wall portion of the air cleaner box, the intake port is extended to the upper wall portion of the air cleaner box so as to cover the regulator, and the regulator is placed facing inside an intake passage connecting between the intake port and the opening. The air cleaner apparatus so configured provides a sufficient cooling effect, and is excellent in ease of maintenance. | 03-24-2011 |
Takashi Fujitsu, Aiko-Gun JP
| Patent application number | Description | Published |
|---|---|---|
| 20080280795 | LUBRICATING OIL COMPOSITION - A lubricating oil composition comprising base oil, one or more glycerol esters selected from glycerol monooleate and/or glycerol dioleate, optionally in combination with glycerol trioleate, wherein said composition further comprises one or more dispersant-viscosity index improver compounds and an additive amount of one or more additional polyhydric alcohol esters; and a method of lubricating an internal combustion engine comprising applying said lubricating oil composition thereto. | 11-13-2008 |
Yusuke Fujitsu, Anjo-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20110192146 | MULTICYLINDER INTERNAL COMBUSTION ENGINE, INTER-CYLINDER AIR/FUEL RATIO IMBALANCE DETERMINATION APPARATUS, AND METHOD THEREFOR - A multicylinder engine includes: combustion chambers; fuel injection valves corresponding to the individual combustion chambers; an exhaust control catalyst; an upstream-side air/fuel ratio sensor disposed upstream of the exhaust control catalyst; and a downstream-side A/F sensor disposed downstream of the catalyst. A first abnormality determination-purpose rich A/F control of controlling the A/F of the mixture formed in each combustion chamber to an A/F richer than stoichiometric is executed when it needs to be determined whether the downstream-side A/F sensor is abnormal. An inter-cylinder A/F imbalance determination of estimating the A/F of the mixture in each combustion chamber based on the output of the upstream-side A/F sensor is executed when the first abnormality determination-purpose rich A/F control is being executed, and it is determined whether there is a difference between the estimated A/Fs of the mixtures. | 08-11-2011 |