Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7235538 | Heterocyclic compounds, which are inhibitors of the enzyme DPP-IV The present invention relates to therapeutically active and selective inhibitors of the enzyme DPP-IV, which are of formula I wherein each n is one or two independently and R1, R2, R3 | 06/26/2007 |
| 7169444 | Method for treating surface of ink jet recording medium having recorded image [The present invention] provides a surface treatment method for recorded matter which can improve the weather resistance characteristics such as light resistance, gas resistance and the like of recorded matter in which images are recorded on the recording medium, as... | 01/30/2007 |
| 6902858 | Image formation apparatus using a dry two-component developer for development An image formation apparatus develops an electrostatic latent image with a two-component developer consisting of magnetic carriers and toners by using a development apparatus and a latent image supporter including a filler in an outermost layer thereof, the developm... | 06/07/2005 |
| 6790585 | Method for developing a high contrast photographic material containing a polyhydrazide nucleating agent The present invention relates to a method for developing an exposed high contrast photographic silver halide material, said photographic material comprising a support bearing at least one silver halide emulsion layer, containing at least one hydrazide nucleating age... | 09/14/2004 |
| 6544725 | LIGHTSENSITIVE SILVER HALIDE PHOTOGRAPHIC EMULSION, SILVER HALIDE PHOTOGRAPHIC LIGHTSENSITIVE MATERIAL CONTAINING THE SAME, AND METHOD OF ENHANCING SENSITIVITY OF LIGHTSENSITIVE SILVER HALIDE PHOTOGRAPHIC EMULSION A lightsensitive silver halide photographic emulsion comprises silver halide grains, a sensitizing dye having a given maximum absorption wavelength and an organic compound exhibiting no absorption in a visible light region. The addition amount of the orga... | 04/08/2003 |
| 5691107 | Silver halide photographic photosensitive material The present invention provides a silver halide photographic photosensitive material which comprises a support and at least one silver halide photographic emulsion layer, a hydrazine compound being contained in at least one of the emulsion layer and other ... | 11/25/1997 |
| 5494776 | Hybrid graphic arts films with reduced occurrence of pepper fog The present invention provides a photographic element developed in the presence of a hydrazide which displays high contrast but low levels of pepper fog. The novel silver halide photographic elements comprise, in at least one layer of the element, a peppe... | 02/27/1996 |
| 5382496 | Silver halide light-sensitive material and a method for forming image using the same There is disclosed a silver halide light-sensitive material and a method for forming image using thereof, in which a high contrast negative image useful in a photographic plate making process can be obtained in a processing solution with a pH lower than 1... | 01/17/1995 |
| 5256337 | Photochromic polymer membrane A photochromic material adapted for coating light transmissive materials. The photochromic material contains photosensitive silver halide crystals having dimensions in the range of approximately 50 Angstroms to 800 Angstroms. The silver halide crystals ar... | 10/26/1993 |
| 5238780 | Method of image formation A method for forming images having a contrast of greater than G 8, comprising the step of developing an imagewise exposed silver halide photographic material with a developing solution having a pH of 11.2 or less. The silver halide photographic material c... | 08/24/1993 |
| 5229249 | Silver halide photographic material and method for processing the same A silver halide photographic material comprising a support, having thereon one or more hydrophilic colloid layers, wherein at least one of the hydrophilic colloid layers is a silver halide emulsion layer, and wherein the silver halide emulsion layer or an... | 07/20/1993 |
| 5217842 | Superhigh contrast negative image forming process A process of forming superhigh-contrast negative images is disclosed. The process comprises the steps of imagewise exposing a substantially surface latent image-type silver halide photographic material which is spectrally sensitized with a sensitizing dye... | 06/08/1993 |
| 5200298 | Method of forming images A method of forming a black-and-white image of very high contrast having a gamma value of 8 or above is disclosed, using a negative imagewise exposed photosensitive material comprising a support having thereon at least one hydrophilic colloid layer, at le... | 04/06/1993 |
| 5185232 | Method of image formation A method of image formation comprising imagewise exposing a silver halide photographic photosensitive material comprising a support having thereon at least two silver halide emulsion layers and which contains a hydrazine compound in the emulsion layers or... | 02/09/1993 |
| 5158856 | Silver halide photographic light-sensitive material capable of providing a high contrast image A silver halide photographic light-sensitive material having a support and provided thereon, at least one silver halide emulsion layer containing Compound [I] or Compound [II] represented by Formula [I] or [II] is disclosed; ##STR1##... | 10/27/1992 |
| 5147755 | Silver halide photographic material An ultra-high contrast negative type silver halide photographic material is disclosed, wherein at least one hydrazine derivative of formula (I) and at least one compound of formula (IV) are contained in a silver halide emulsion layer or another hydrophili... | 09/15/1992 |
| 5118583 | Processing composition for printing plate The present invention provides a processing composition which is used for lithographic printing plate where silver image is used as ink receptive area for enhancing ink receptivity of the silver image. This composition contains an organic compound having ... | 06/02/1992 |
| 5108872 | Silver halide photographic material and method of forming images using same A silver halide photographic material comprising a support having thereon at least one light-sensitive layer comprising a silver halide emulsion sensitized by an infrared sensitization dye, wherein the silver halide in the silver halide emulsion contains ... | 04/28/1992 |
| 5073303 | Photochromic emulsion A photochromic material adapted for coating light transmissive materials. The photochromic material contains photosensitive silver halide crystals having dimensions in the range of approximately 50 Angstroms to 800 Angstroms. The silver halide crystals ar... | 12/17/1991 |
| 5064745 | Method for making lithographic printing plate The invention provides a process for making a lithographic printing plate utilizing silver image as ink receptive area which is markedly improved especially in printing endurance. The process comprises subjecting a light-sensitive material for lithographi... | 11/12/1991 |
| 4988603 | Method for the formation of high-contrast images using a developer comprising a hydrazine derivative A processing method for silver halide photographic material is disclosed, which stably provides images having high contrast and high dot quality with little degradation in sensitivity by rapid processing. In the method, a silver halide light-sensitive mat... | 01/29/1991 |
| 4978603 | Image forming process comprising developing fine grain silver halide emulsion with a hydroquinone developer An image-forming process which comprises after imagewise exposing a silver halide photographic material having at least one silver halide emulsion layer composed of silver halide grains containing at least 1×10-6 mol of a rhodium salt per mol ... | 12/18/1990 |
| 4965169 | Method for forming a high contrast negative image A method for forming a high contrast negative image comprising the steps of: (a) imagewise exposing a silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, said emulsion layer or... | 10/23/1990 |
| 4956257 | Silver halide photographic material and method for forming an image A negative silver halide photographic material composed of a support having thereon at least one chemically sensitized silver halide emulsion layer at least one hydraophilic colloidal layer containing a hydrazine derivative and a compound having substanti... | 09/11/1990 |
| 4927734 | Silver halide photographic light-sensitive material and a process for forming a high contrast photographic image A silver halide photographic light-sensitive material contains at least one negative-working silver halide emulsion layer composed of substantially surface latent image type monodispersed silver halide grains. The emulsion layer or another hydrophilic col... | 05/22/1990 |
| 4920035 | Image forming method An image is formed by imagewise exposing a silver halide light-sensitive material comprising at least a silver halide and a contrast enhancing agent, and producing the exposed material with a developer solution or aqueous activator solution in the presenc... | 04/24/1990 |
| 4873172 | Process for forming a superhigh contrast negative image A process for forming a superhigh contrast negative image with a stable developer is disclosed, which comprises development processing a silver halide photographic material in the presence of a compound of formula (I) and a compound of formula (II) as def... | 10/10/1989 |
| 4859567 | Method of forming high contrast negative images A method of forming a high contrast negative image is disclosed, comprising developing an imagewise exposed substantially surface latent image-type silver halide photographic material in the presence of a hydrazine derivative with a developer, said develo... | 08/22/1989 |
| 4851321 | Superhigh contrast negative-type silver halide photographic material A superhigh contrast negative type silver halide photographic material comprising a support having provided thereon at least one silver halide emulsion layer, the emulsion layer or at least one other hydrophilic colloid layer containing at least one hydra... | 07/25/1989 |
| 4849319 | Silver halide photographic light-sensitive material and method of forming super-high contrast negative image using the photographic material A negative silver halide photographic material comprising a support and at least one silver halide emulsion layer on the support, the emulsion layer or other hydrophilic colloid layer containing a hydrazine derivative, wherein the photographic material fu... | 07/18/1989 |
| 4847180 | Silver halide photographic material capable of being handled in a bright room during steps of photomechanical process A silver halide photographic material which may be handled in a bright room, which comprises a support having provided thereon at least one silver halide emulsion layer containing silver chlorobromide grains (bromide content: not more than 20 mol %) or si... | 07/11/1989 |
| 4833064 | Process for the formation of a high contrast negative image A novel process for the formation of a high contrast negative image is provided which comprises processing a silver halide photographic material with a developing solution, wherein said developing solution contains a dihydroxybenzene developing agent, a 1... | 05/23/1989 |
| 4830950 | Silver halide photographic material A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer; wherein said emulsion layer comprises a silver chloride emulsion or a silver chlorobromide emulsion containing 90 mol % or more silver chl... | 05/16/1989 |
| 4816373 | Method of producing images Disclosed is a method for producing images which comprises imagewise exposing a silver halide photographic light-sensitive material and then developing the exposed light-sensitive material in the presence of a compound represented by the following general... | 03/28/1989 |
| 4803149 | Silver halide photographic materials A silver halide photographic material for a bright room and a process for producing the photographic material are disclosed, wherein the silver halide photographic material for a bright room comprises a support having thereon at least one silver halide em... | 02/07/1989 |
| 4800150 | Super-high contrast negative type photographic material A super-high contrast negative type silver halide photographic material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer, said emulsion layer or layers or other hydrophilic colloidal layer or layers cont... | 01/24/1989 |
| 4786587 | Silver halide photographic material comprising two kinds of monodisperse emulsions differing in mean grain size A silver halide photographic material comprising at least one negative type silver halide emulsion layer coated on a support, said emulsion comprising two kinds of monodisperse emulsions each having a means grain sizes of not more than 0.5 micron and, dif... | 11/22/1988 |
| 4762769 | Silver halide photographic material A silver halide photographic material which has at least one silver halide emulsion layer comprising silver chloride or silver chlorobromide grains which has a bromide content of 5 mol % or less, and containing a rhodium salt in an amount of from 1×10 | 08/09/1988 |
| 4761362 | Processing a photographic material comprising an emulsion layer providing a contrast gradation and another layer providing a soft tone gradation An image forming process capable of providing photographic images having extremely high contrast and high resolution for use in photoengraving is disclosed, which comprises processing an image-wise exposed silver halide light-sensitive material having at ... | 08/02/1988 |
| 4755448 | Silver halide photographic material and method for forming super high contrast negative images therewith A negative type silver halide photographic material and a method for forming a super high contrast negative image using the photographic material are disclosed. The photographic material comprises a support, at least one silver halide emulsion layer on th... | 07/05/1988 |
