1
Akira Sanjoh: Apparatus for crystal growth and crystal growth method employing the same. Sumitomo Metal, Burns Doane Swecker & Mathis, January 16, 2001: US06174365 (133 worldwide citation)

Provided are an apparatus and a method which can accelerate crystallization of a biological macromolecule such as protein. A plurality of solution storage parts are formed on a silicon substrate whose valence electrons are controlled by controlling the concentration and/or the type of impurity. Thes ...


2
Akira Sanjoh: Crystallization control method for organic compound and crystallization control solid-state component employed therefor. Sumitomo Metal, Burns Doane Swecker & Mathis, September 26, 2000: US06123769 (127 worldwide citation)

A method which can control crystallization of a biopolymer such as protein is provided. A silicon crystal (15) whose valence electrons are controlled to be capable of controlling the concentration of holes or electrons of the surface part in response to the environment of a buffer solution (14) cont ...


3
Kunihiro Fukui, Minoru Nishihara, Toshiro Mase, Yoshiyasu Morita, Hisakazu Kawashima: Oil well pipe joint. Sumitomo Metal, Burns Doane Swecker & Mathis, December 23, 1986: US04630849 (121 worldwide citation)

An oil well pipe joint comprising a metal-to-metal sealing portion without thread is disclosed. A metal-plated or resin-coated layer exhibiting improved resistance to galling is provided on the outer peripheral surface of a thread-free lip portion which constitutes part of the metal-to-metal sealing ...


4
Kunitoshi Kimura, Tetsuzo Arai, Hiroshi Matsuoka, Toshiharu Nakagawa: FRP pipe with threaded ends. Sumitomo Metal, Nitto Electric Industrial Company, Burns Doane Swecker & Mathis, January 16, 1990: US04893658 (115 worldwide citation)

An FRP pipe having threaded ends at both ends, such as casing, tubing, and coupling, is disclosed, which is characterized in that metal plating is formed on the surface of at least one of the threaded ends.


5
Nobukazu Suzuki, Seiji Bando, Satoshi Ikeda, Tetsuaki Tsuda, Atsuhisa Yakawa, Yukihiro Yoshikawa: Corrosion-resistant surface-coated steel sheet. Sumitomo Metal, Burns Doane Swecker & Mathis, July 19, 1994: US05330850 (100 worldwide citation)

A surface-coated steel sheet having improved corrosion resistance and suitable for use as automobile inner and outer panels comprises a steel sheet having on at least one surface thereof a composite coating which comprises the following layers (a) to (d) from the bottom to the top of the coating:


6
Takuji Itoh, Toshihiko Kubo: Semiconductor package and semiconductor device. Sumitomo Metal, Burns Doane Swecker & Mathis L, June 15, 1999: US05912505 (87 worldwide citation)

A semiconductor package and a semiconductor device comprises a metal bump to be placed between a metal pad formed on a package body of a substantially plate-like shape and an interconnecting solder for connecting a metal ball thereto, wherein the melting point of the metal bump is higher than that o ...


7
Masaya Yukinobu, Munekazu Kawata, Yasuo Tsukui: Transparent conductive substrate and method of making the same. Sumitomo Metal Mining, Tohoku Chemical, Graham & James, June 6, 1995: US05421926 (64 worldwide citation)

A transparent conductive substrate comprising a base plate member allowing transmission therethrough of visible light, a transparent, overcoat layer formed on the base plate member, and a transparent conductive film which is formed on the overcoat layer, containing ultra-fine particles of indium-tin ...


8
Matsuki Norio: Threaded tube joint structure for casing, particularly oil well tubing. Sumitomo Metal, Watson Cole Grindle & Watson, March 11, 1975: US3870351 (62 worldwide citation)

A threaded tube joint structure for casing, particularly oil well tubing, which is more perfect in the sealing performance than any other joint. This sealing performance is obtained with a first metal-to-metal contact seal between the outer surface of a lip of a male threaded member and a correspond ...


9
Sho Takano: Boring apparatus. Sumitomo Metal Mining Company, Watson Cole Grindle & Watson, September 11, 1984: US04470470 (61 worldwide citation)

A boring apparatus comprises a drill pipe for being placed underground, an outer tube insertable into the drill pipe, and an inner tube axially movably inserted in the outer tube. The inner tube is locked against relative movement with respect to the drill pipe while being allowed to rotate therewit ...


10
Miyuki Yamamoto, Akira Narita, Jun Maeda: Threaded joint for oil well pipes. Sumitomo Metal, Burns Doane Swecker & Mathis, November 3, 1998: US05829797 (56 worldwide citation)

A threaded joint for an oil well pipe having (1) a tapered threaded having roughly the shape of a buttress thread, (2) a pin having a male thread and a box having a female thread, (3) a seal and a torque shoulder, characterized in that