Robert G Nichols

US Patent:

59980907, Dec 7, 1999

Filed:

Dec 1, 1997

Appl. No.:

8/982233

Inventors:

Ram W. Sabnis - Rolla MO
Terry L. Brewer - Rolla MO
Robert E. Nichols - Rolla MO
Edith G. Hays - Rolla MO
Michael D. Stroder - Springfield MO
Akira Yanagimoto - Musashino, JP
Yasuhisa Sone - Funabashi, JP
Yoshitane Watanabe - Tokyo, JP
Kiyomi Ema - Chiba, JP

Assignee:

Brewer Science, Inc. - Rolla MO
Nissan Chemical Industries, Ltd.

International Classification:

G03F 7004
C08K 304

US Classification:

4302701

Abstract:

A high optical density, i. e. ,. gtoreq. 3. 0, at 1 micron or less film thickness, black matrix is disclosed having improved stability and shelf life as a consequence of admixing Pigment Black 7 and organic dye or dye mixtures on a polyimide polymer vehicle.

US Patent:

6066374, May 23, 2000

Filed:

Dec 7, 1995

Appl. No.:

8/568804

Inventors:

Thomas E. Healy - Blue Springs MO
Robert B. Nichols - Kansas City MO
Richard D. Knight - Lee's Summit MO

Assignee:

Alphapointe Association for the Blind - Kansas City MO

International Classification:

B65D 8304

US Classification:

428 357

Abstract:

A transparent, light resistant container is provided for storage of medicinal agents, such as tablets, capsules, and the like. In broad terms, the container includes a container body having self-sustaining wall structure of predetermined thickness formed from a synthetic resin composition. A quantity of a coloring agent dispersed in the resin composition. The quantity of the coloring agent is correlated with the thickness of the wall structure to permit transmission through the wall structure of no more than 10% of light having a wavelength of between about 400 nm to 450 nm while permitting transmission through the wall structure of adequate visible light to allow external visual inspection of printed characters on solid medicinal tablets and capsules stored in the container. In addition, an amount of a UV absorber is dispersed in the resin composition. The amount of UV absorber is also correlated with the thickness of the wall structure and sufficient to permit transmission through the wall structure of the predetermined thickness of no more than 10% of light having a wavelength between about 290 nm to 400 nm.