Di I Chen, 962702 Kimball Ct, Woodridge, IL 60517

2013029, Nov 7, 2013

Mar 15, 2013

13/833777

Hee-Jeong Im Sampen - Lincolnwood IL, US
Howard S. An - Glenview IL, US
Di Chen - Chicago IL, US

A61F 2/44

623 1711

Provided are methods for treating intervertebral disc degeneration, promoting tissue regeneration in the intervertebral disc, promoting homeostasis of the intervertebral disc, preventing intervertebral disc degeneration, and reducing inflammation of the intervertebral disc in a subject in need thereof comprising administering a myeloid differentiation primary response (88) (MyD88) antagonist to the subject. Also provided is a device, biomaterial or putty for implantation in or near the spine, wherein the device, biomaterial or putty is coated or infused with a myeloid differentiation primary response gene (88) (MyD88) antagonist.

4253731, Mar 3, 1981

Apr 9, 1979

6/027958

Rogers H. Anderson - Bloomington MN
Enrique B. G. - Minnetonka MN
Di Chen - Hopkins MN

Honeywell Inc. - Minneapolis MN

G02B 514

350 9634

An infrared fiber of a silver chloride clad silver bromide core fabricated by an extrusion process in which both core and cladding are extruded.

4086001, Apr 25, 1978

Jan 13, 1975

5/540919

Di Chen - Minnetonka MN
Barry G. Koepke - Burnsville MN

Honeywell Inc. - Minneapolis MN

G02B 514

350 9614

A thin optical waveguide is formed by a waveguide region having an index of refraction greater than the index of refraction of the substrate. The greater index of refraction of the waveguide region is a result of residual stress within the waveguide region.

4271104, Jun 2, 1981

Dec 13, 1979

6/103247

Rogers H. Anderson - Bloomington MN
Enrique Bernal G. - Minnetonka MN
Di Chen - Hopkins MN

Honeywell Inc. - Minneapolis MN

B29D 1100

264 15

A method of hot rolling or extrusion of a textured-surface sheet can be used to produce a large one dimensional array of fibers; these arrays can be stacked to form the two dimensional matrix required for image transfer. Alternatively, a flat ribbon can be rolled or extruded and the fiber array formed from it by altering the refractive index of alternate strips using diffusion ion exchange or implantation methods.

4670869, Jun 2, 1987

Jan 3, 1984

6/567610

Di Chen - Colorado Springs CO

Magnetic Peripherals Inc. - Minneapolis MN

G11B 700
G02F 133

369109

A gas laser optical recording apparatus having a write beam deflected from the optical path taken by the read beams by an acoustic optical modulator. In one embodiment the write beam is time-shared between the read optical path and the write optical path. In this embodiment an attenuator is placed in the read optical path to reduce the power of the laser beam from write power to read power. In a second embodiment 5 percent of the power is allowed to remain in the read optical path and the write beam is deflected between a beam stop and the write optical path as required.

4462095, Jul 24, 1984

Mar 19, 1982

6/359641

Di Chen - Colorado Springs CO

Magnetic Peripherals Inc. - Minneapolis MN

H04N 576
G11B 2110

369 44

In an optical recording system for both reading and writing, the laser beam is projected to the media through a diffraction grating which generates a plus one and minus one order beam ahead of and behind the main zero order beam. The grating is driven by an oscillating driver so as to wobble in a fashion which leaves the zero order beam unaffected but causes the plus one and minus one order beams to move inwardly and outwardly, radially, with respect to the information track on the media in opposite fashions. The wobbling plus one and minus one order beams are used to generate differential signals from separate detectors and are passed through a band pass filter to generate a radial position error signal which may be used to drive the write/read head inwardly or outwardly to remain positioned over a particular information track.

3997690, Dec 14, 1976

May 27, 1975

5/581302

Di Chen - Minnetonka MN

Honeywell Inc. - Minneapolis MN

B05D 506
C04B 3546
C23C 1500

427162

Method for adjusting index of refraction of optical coating by heat treating. PLZT ceramic can be sputtered to form a thin film optical coating material for various optical applications. The fact that its refractive index can be adjusted by diffusion makes it particularly useful for antireflection coating or reflection coating on optical surfaces.

4090776, May 23, 1978

Oct 13, 1976

5/731862

Enrique Bernal G. - Minnetonka MN
Di Chen - Minnetonka MN
Barry G. Koepke - Mound MN
James David Zook - Burnsville MN

Honeywell Inc. - Minneapolis MN

G02B 514

350 9612

Optical waveguides are fabricated by heating a region of a body of flat filter glass with an energy beam such as a scanning focused laser beam. The region is locally heated to a temperature at which softening occurs. Upon cooling two differing effects occur, the two effects causing a "W" shaped index of refraction profile. The first effect is the photoelastic effect due to the residual stress introduced as the heated material cools and contracts. The residual tensile stress is constant in the softened region, but decreases as the distance from the center of the heating increases. Since the density and therefore the refractive index of this region is inversely proportional to the residual stress, this effect resulted in a local refractive index minimum. The other effect is the material density change in the softened region. As the cooling rate is small in the center and large in the edge of this softened region, a density change occurs with the center attaining the highest value and decrease towards the edge.