| Patent Number |
Title Of Patent |
Date Issued |
| 6516162 |
Image forming apparatus with automatic density compensation |
February 4, 2003 |
| The object of this invention is to provide an image forming apparatus capable of preventing decrease in image density at a rear end part of an image. A change in waveform in sensor outputs which is produced when a toner patch image is read by an optical sensor used for the process co |
| 6353716 |
Image forming apparatus having humidity detection and toner concentration adjusting according to |
March 5, 2002 |
| An image forming apparatus including a developing unit for stocking a developing agent containing toner and forming a toner image on a photosensitive medium with the developing agent, a toner supply unit for supplying the toner to the developing unit, a toner specific concentration d |
| 5983055 |
Photosensitive element for electrophotography |
November 9, 1999 |
| A photosensitive element is produced with a minimum amount of a conductive synthetic resin material. A draft for injection molding is formed in the inner circumferential surface as a supporting body, and a driven member provided with a gear is fixed to the end of the supporting body with |
| 5767039 |
Process for manufacturing methanol and process for manufacturing catalyst for methanol synthesis |
June 16, 1998 |
| A process for manufacturing methanol is herein disclosed which comprises the step of reacting hydrogen with carbon monoxide and/or carbon dioxide in the presence of a synthetic catalyst obtainable by mixing, in a slurry state, (a) a beforehand prepared precipitation slurry of copper and |
| 5254769 |
Method of isomerization of dimethylnaphthalenes |
October 19, 1993 |
| Dimethylnaphthalenes are isomerized into 2,6-dimethylnaphthalene by utilizing hydrogen fluoride as a catalyst and straight chain saturated aliphatic hydrocarbons having carbon atoms in the range from 5 to 12 as the solvent. Isomerization to other undesirable isomers such as 2,7-dimet |
| 5068480 |
Process for producing 2,6-dimethylnaphthalene |
November 26, 1991 |
| A process for producing 2,6-dimethylnaphthalene, which comprises subjecting 2-methyl-1-(p-tolyl)-butene, 2-methyl-1-(p-tolyl)-butane or a mixture of these to cyclization and dehydrogenation in the presence of a catalyst comprising lead oxide and/or indium oxide and aluminum oxide. |
| 4970557 |
Electrophotographic apparatus controlling image quality according to condition of deterioration |
November 13, 1990 |
| Electrophotographic apparatus according to this invention are controlled in different ways such that quality of produced images is not affected by deterioration of the developing agent or the condition of the photoreceptor. A timer may be provided to detect the duration of a rest per |
| 4962408 |
Device for removing defective developer agent from a developing unit of an image formation appar |
October 9, 1990 |
| An image formation apparatus having a cleaning process for removing defective toner from the developing unit during a non-image formation rotation of the photoreceptor drum. The image formation apparatus includes a reverse polarity charger for charging the photoreceptor drum to an op |
| 4916104 |
Catalyst composition for decomposition of methanol |
April 10, 1990 |
| A catalyst composition for decomposition of methanol comprising a substantially aluminum-free precipitate composed of a copper compound and a nickel compound, a phosphate salt of aluminum and an alkali metal compound, the content of the alkali metal being 1 to 100 atoms per 100 atoms |
