Patents Assigned to University of Hawaii
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Patent number: 6134971Abstract: The present invention is a novel electronic technique that detects stress/strain in any conductive or semiconductive material. The technique is based on passing a current through the material of interest and analyzing the low frequency voltage fluctuation. The voltage fluctuation is very sensitive to the amount of stress present in the sample. The voltage fluctuation is a result of interactions between the imposed current and material itself. The technique is many orders of magnitude more sensitive than any present method. The technique is suitable for sensitive measurements without a strain gauge. The technique is not limited by sample size, and provides a simple, fast, nondestructive and on-site evaluation of stress/strain in a material.Type: GrantFiled: August 27, 1998Date of Patent: October 24, 2000Assignee: University of HawaiiInventors: Anupam Misra, James R. Gaines, Richard Rocheleau, Steven Song
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Patent number: 6133457Abstract: A compound of formula IV ##STR1## wherein G is C.sub.1 -C.sub.12 alkyl, C.sub.2 -C.sub.12 alkenyl, C.sub.2 -C.sub.12 alkynyl or Ar;Ar is an aromatic or heteroaromatic group or a substituted aromatic or heteroaromatic group;R.sup.1 is halo, SR, OR, amino, mono or di-(C.sub.1 -C.sub.6 -alkyl)amino, tri (C.sub.1 -C.sub.6 -alkyl)ammonium, C.sub.1 -C.sub.6 -alkylthio, di(C.sub.1 -C.sub.6 -alkyl)sulfonium, C.sub.1 -C.sub.6 -alkylsulfonyl, or C.sub.1 -C.sub.6 -alkylphosphonyl;R.sup.2 is OH or SH; orR.sup.1 and R.sup.2 taken together form a second bond or together form an epoxide, aziridine, episulfide, or cyclopropyl ring;R is H, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkanoyl or Ar;R.sup.3 is C.sub.1 -C.sub.6 alkyl;R.sup.4 and R.sup.5 are H; orR.sup.4 and R.sup.5 taken together form a second bond;R.sup.24 is a leaving group; andR.sup.26 is an alcohol protecting group;X is O, NH or (C1-C3 alkyl)N--.Type: GrantFiled: July 2, 1999Date of Patent: October 17, 2000Assignees: Eli Lilly and Company, Wayne State University, University of HawaiiInventor: Vinod F Patel
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Patent number: 6110351Abstract: A method of machining metal-matrix composite materials using electrochemical machining is provided. The method comprises the steps of: providing a metal matrix composite material in an electrochemical machine, and electrochemically machining the metal-matrix composite material in a nitrate or chloride containing electrolyte at a current density of equal to or greater than approximately 1 A/cm.sup.2. Preferably the metal-matrix composite is comprised of an aluminum alloy or pure Al matrix with ceramic particles, such as silicon carbide.Type: GrantFiled: October 15, 1998Date of Patent: August 29, 2000Assignee: University of HawaiiInventors: Lloyd Hiromi Hihara, Philip Panquites, IV
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Patent number: 6103489Abstract: An amphibian egg extract is added to a cell-free translation system to obtain in vitro translocation and processing of newly synthesized peptide. The egg extract produces near complete signal sequence and N-linked carbohydrate processing of protein. Egg extract microsomes provide for protein translocation.Type: GrantFiled: March 20, 1998Date of Patent: August 15, 2000Assignee: University of HawaiiInventors: Richard Arakaki, Xiangjun Zhou
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Patent number: 6103913Abstract: This invention provides processes for preparing lactone intermediates useful for the preparation of pharmaceutical compounds such as tetrahydrolipstatin and cryptophycin compounds.Type: GrantFiled: August 16, 1999Date of Patent: August 15, 2000Assignees: Eli Lilly and Company, Wayne State University, University of HawaiiInventors: David Allen Hay, Tony Yantao Zhang
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Patent number: 6091003Abstract: The present invention provides methods for the production of transgenic pineapple-like totipotent bodies, and in particular, transgenic pineapple-like callus and transgenic pineapple-like protocorm-like bodies. Also provided by this invention are methods for the production of transgenic plants from transgenic totipotent bodies which include transgenic pineapple-like callus and protocorm-like bodies. The invention additionally provides transgenic pineapple-like plants which may be genetically engineered to exhibit resistance to pests and disease and to exhibit improved qualities. The invention further provides improved methods for the maintenance of pineapple-like protocorm-like bodies in culture. These improved methods are useful for reducing the time, cost, and labor involved in selecting stably transformed pineapple-like protocorm-like bodies.Type: GrantFiled: May 14, 1998Date of Patent: July 18, 2000Assignee: University of HawaiiInventors: Guo-Ling Nan, Chifumi Nagai
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Patent number: 6083759Abstract: The present invention is a blood smearing cassette that quickly, efficiently and reliably prepares peripheral blood smears. The cassette holds two glass slides, a spreader slide and a smear slide, at specific angles to each other. The blood smearing cassette allows untrained personnel to make consistent and proper blood smears. The user slips a smear slide into the smear slide receiver, and a spreader slide into the spreader slide receiver. A small amount of blood is placed on the smear slide, which is then pulled up to the spreader slide until the drop of blood is in contact with the spreader slide. The blood is allowed to spread across the bottom of the spreader slide. The smear slide is then pulled back out of the cassette, leaving a thin film of blood on the smear slide. The length and thickness of the film are controlled by varying the speed at which the smear slide is pulled and varying angles between the two slides.Type: GrantFiled: December 30, 1997Date of Patent: July 4, 2000Assignee: University of HawaiiInventor: Dick Y. Teshima
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Patent number: 6075184Abstract: Purified proteins, DNA sequences that code on expression therefore and recombinant DNA molecules, including hosts transformed therewith, for transforming coffee plants to suppress the expression of caffeine. The DNA sequences and recombinant DNA molecules are characterized in that they code on expression for an enzyme in the pathway for caffeine synthesis in coffee. Coffee plants transformed with DNA molecules that code on transcription for mRNA that is antisense to mRNA that codes on expression for at least one enzyme in the pathway for caffeine biosynthesis.Type: GrantFiled: March 26, 1996Date of Patent: June 13, 2000Assignee: University of HawaiiInventors: John I. Stiles, Istefo Moisyadi, Kabi Raj Neupane
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Patent number: 6074447Abstract: A method for storing and releasing hydrogen fuel includes providing a hydrogenated material in a chamber, introducing a catalyst into the chamber, heating the chamber to about 190.degree. C., separating at least part of the material into dehydrogenated material and hydrogen and releasing the hydrogen from the chamber. A preferred catalyst is a transition metal complex, such as the iridium based complex IrH.sub.4 {2,6C.sub.6 H.sub.3 (CH.sub.2 P(C(CH.sub.3).sub.3).sub.2).sub.2 }. To reverse the process, a hydrogen pressure of about 10 atmospheres or more is provided, and the dehydrogenated material and hydrogen are combined at about or at least 100.degree. C. to regenerate the hydrogenated material. The small, lightweight system for carrying out the present method includes a chamber containing hydrogenated material and a catalyst, and having an outlet with a selectively permeable membrane for releasing hydrogen and containing hydrogenated material and a homogenous catalyst.Type: GrantFiled: August 27, 1997Date of Patent: June 13, 2000Assignee: University of HawaiiInventor: Craig M. Jensen
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Patent number: 6051758Abstract: Recombinant materials for the production of practical amounts of the sweet protein, mabinlin are provided. In addition, transgenic plants which have inherently sweetened edible parts result from modifying native plants containing edible parts to express the mabinlin gene. Single-chain forms of this protein which retain their sweetening property are also provided.Type: GrantFiled: May 20, 1998Date of Patent: April 18, 2000Assignee: University of HawaiiInventors: Samuel S. M. Sun, Liwen Xiong, Zhong Hu, Hang Chen
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Patent number: 6020512Abstract: Novel processes and intermediates useful in the preparation of Cryptophycin compounds are disclosed.Type: GrantFiled: February 25, 1998Date of Patent: February 1, 2000Assignees: Eli Lilly and Company, Wayne State University, University of HawaiiInventors: Michael J. Martinelli, Eric D Moher, Naresh K Nayyar, Joseph M Pawlak, David W Hoard, Vien V Khau, John E Toth, David L Varie
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Patent number: 6013626Abstract: A cryptophycin compound is provided having the structure: ##STR1## Further provided are methods of producing cryptophycins by total synthesis and methods of using cryptophycins in pharmaceuticals. It is a further object of this invention to use cryptophycins to inhibit the proliferation of mammalian cells. Moreover, methods of using cryptophycins to treat neoplasia is also provided.Type: GrantFiled: March 7, 1995Date of Patent: January 11, 2000Assignees: The University of Hawaii, Wayne State UniversityInventors: Richard E. Moore, Marcus A. Tius, Russell A. Barrow, Jian Liang, Thomas H. Corbett, Frederick A. Valeriote, Trimurtulu Golakoti, Thomas K. Hemscheidt
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Patent number: 5987092Abstract: A method for inspecting masks used in x-ray lithography is described. An x-ray lithography mask is placed over a glass surface, followed by exposure of the mask and glass surface to soft x-rays. Portions of the mask absorb the soft x-rays while other portions of the mask, corresponding to circuit elements, allow the soft x-rays to strike the glass surface. The soft x-rays striking the glass surface cause the glass surface to darken, thereby forming an image of the circuit pattern in the glass surface corresponding to the stenciled circuit in the mask. An inspection of the image can reveal any defects in the x-ray lithography mask.Type: GrantFiled: March 11, 1998Date of Patent: November 16, 1999Assignee: University of HawaiiInventor: William Pong
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Patent number: 5977387Abstract: This invention provides processes for preparing cryptophycin compounds and novel intermediates which are useful in such processes.Type: GrantFiled: February 25, 1998Date of Patent: November 2, 1999Assignees: Eli Lilly and Company, Wayne State University, University of HawaiiInventor: Vinod F Patel
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Patent number: 5955423Abstract: A cryptophycin compound is provided having the structure: ##STR1## Further provided are methods for producing novel cryptophycins from the Nostoc sp. of blue-green algae (cyanobacteria). Pharmaceutical compositions comprising novel cryptophycins are also provided, as are methods for using cryptophycins to inhibit the proliferation of hyperproliferative cells. Further provided are methods for using cryptophycins to inhibit the proliferation of hyperproliferative cells with drug resistant phenotypes, and to treat pathological conditions, such as neoplasia.Type: GrantFiled: June 7, 1995Date of Patent: September 21, 1999Assignees: The University of Hawaii, Wayne State UniversityInventors: Richard E. Moore, Charles D. Smith, Gregory M. L. Patterson, Susan L. Mooberry, Thomas H. Corbett, Frederick A. Valeriote, Trimurtulu Golakoti
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Patent number: 5952298Abstract: A cryptophycin compound is provided having the structure: ##STR1## Further provided are methods for producing novel cryptophycins from the Nostoc sp. of blue-green algae (cyanobacteria). Pharmaceutical compositions comprising novel cryptophycins are also provided, as are methods for using cryptophycins to inhibit the proliferation of hyperproliferative cells. Further provided are methods for using cryptophycins to inhibit the proliferation of hyperproliferative cells with drug resistant phenotypes, and to treat pathological conditions, such as neoplasia.Type: GrantFiled: June 7, 1995Date of Patent: September 14, 1999Assignees: The University Of Hawaii, Wayne State UniversityInventors: Richard E. Moore, Charles D. Smith, Gregory M.L. Patterson, Susan L. Mooberry, Thomas H. Corbett, Frederick A. Valeriote, Trimurtulu Golakoti
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Patent number: 5945315Abstract: The present invention provides novel cryptophycin compounds having the following structure: ##STR1## The present invention also provides methods for producing cryptophycins from the Nostoc sp. of blue-green algae (cyanobacteria). Pharmaceutical compositions comprising novel cryptophycins are also provided by the present invention, as are methods for using cryptophycins to inhibit the proliferation of hyperproliferative cells. The present invention further provides methods for using cryptophycins to inhibit the proliferation of hyperproliferative cells with drug resistant phenotypes, and to treat pathological conditions, such as neoplasia.Type: GrantFiled: November 4, 1996Date of Patent: August 31, 1999Assignee: University of HawaiiInventors: Richard E. Moore, Gregory M. L. Patterson
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Patent number: 5889313Abstract: A radiation-damage resistant radiation detector is formed on a substrate formed of a material doped with a first conductivity type dopant. The detector includes at least one first electrode formed of first conductivity type dopant, and at least one second electrode that is spaced-apart from the first electrode and formed of a second conductivity type dopant. Each first and second electrode penetrates into the substrate from a substrate surface, and one or more electrodes may penetrate entirely through the substrate, that is traversing from one surface to the other surface. Particulate and/or electromagnetic radiation penetrating at least a surface of the substrate releases electrons and holes in substrate regions. Because the electrodes may be formed entirely through the substrate thickness, the released charges will be a relatively small distance from at least a portion of such an electrode, e.g., a distance less than the substrate thickness.Type: GrantFiled: February 7, 1997Date of Patent: March 30, 1999Assignee: University of HawaiiInventor: Sherwood Parker
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Patent number: 5874477Abstract: The invention provides a method of preventing or treating malaria comprising administering a therapeutically effective amount of serotonin receptor ligand to reduce the pathological consequences of malaria infection in a patient, said serotonin receptor ligand characterized by an ability to displace an identifying ligand which defines the serotonin receptor subtype 5HT1a or 5HT2/5HT1c.In addition, the invention provides a method of identifying a serotonin receptor ligand capable of reducing the pathological consequences of malarial infection in a patient comprising the step of sequentially assaying potential ligands to identify a ligand characterized by an ability to displace an identifying ligand which defines the serotonin receptor subtype 5HT1a or 5HT2/5HT1c.Type: GrantFiled: August 12, 1994Date of Patent: February 23, 1999Assignee: The University of HawaiiInventors: Bruce McConnell, Christopher P. Locher
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Patent number: 5874269Abstract: The invention provides purified proteins, DNA sequences that code on expression therefore and recombinant DNA molecules, including hosts transformed therewith for transforming coffee plants to suppress the expression of enzymes necessary for ethylene synthesis. The DNA sequences and recombinant DNA molecules are characerized in that they code on expression for the enzymes ACC synthase or ACC oxidase that are elements of the pathway for ethylene biosynthesis in coffee plants. Coffee plants are transformed with vectors containing ACC synthase and/or with ACC oxidase DNA sequences that code on expression for the respective mRNA that is antisense to the mRNA for ACC synthase and/or ACC oxidase. The resulting antisense mRNA binds to the respective ACC synthase and/or ACC oxidase mRNA, thereby inactivating the mRNA encoding one or more enzymes in the pathway for ethylene synthesis. The described DNA sequences can also be used to block synthesis of ACC synthase or ACC oxidase using co-suppression.Type: GrantFiled: August 12, 1996Date of Patent: February 23, 1999Assignee: University of HawaiiInventors: John I. Stiles, Istefo Moisyadi, Kabi Raj Neupane