Toshio Hirai — 41 Patents at Unknown

Toshio Hirai has been granted 41 US patents while listed as an inventor at Unknown. The first was granted in 1980 and the most recent in June 2020. Toshio Hirai ranks #75,001 of 4,157,543 US inventors in our database (top 1.8%). Patent records list Toshio Hirai in Takasago, JP.

Issued Patents All Time

Showing 1–25 of 41 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
10677235	Compression device having connection unit for cooling unit	Kenji Nagura, Hitoshi Takagi, Takuro UBA	2020-06-09
10535130	Life determination device, life determination method, and recording medium for cutting tool	Yasushi OKAJIMA	2020-01-14
9777726	Compressor with valve pressing portions for sealing	Kenji Nagura, Hitoshi Takagi	2017-10-03
9605671	Reciprocating compressor	Kenji Nagura, Hitoshi Takagi	2017-03-28
9328970	Compressing device	Kenji Nagura, Hitoshi Takagi, Takuro UBA	2016-05-03
6975987	Device and method for synthesizing speech	Seiichi Tenpaku	2005-12-13
6891140	Sintering furnace, method of manufacturing sintered objects, and sintered objects	Motoyasu Sato, Sadatsugu Takayama, Masatoshi Mizuno, Seizo Obata, Tadashi Shimada	2005-05-10
6592798	Method for preparing eutectic ceramics	Mamoru Omori, Masao Tokita	2003-07-15
6542876	Method for producing multilayered optical filters using a genetic algorithm and a method for operating the genetic algorithm	Toshihiro Kikuchi, Yoshihiro Someno, Yoshiyuki Kawazoe, Hiroshi Mizuseki	2003-04-01
6149346	Method for replacement of existing pipes and device for carrying out the method	Nobuhisa Takamatsu, Takayuki Kurobe, Toshio Akesaka	2000-11-21
6115180	Optical multilayered-film filter	Hiroshi Masumoto, Xinrong Wang, Yoshihiro Someno	2000-09-05
5586140	Plasma melting method and plasma melting furnace	Michio Ishida, Tsutomu Kuwahara, Hideo Sato, Yoshitoshi Sekiguchi, Kunio Sasaki +2 more	1996-12-17	$69,000
5439853	Mixed oxide composite ceramics and method of producing the same	Mamoru Omori	1995-08-08
5429998	Crystalline sialon having wurtzite structure	Yoshihiro Someno, Makoto Sasaki	1995-07-04
5384293	Rare earth oxide-alumina-silica sintered body and method of producing the same	Mamoru Omori	1995-01-24
5340959	EDM with an electrode moved by deformation of an electrode actuator	Kiyoshi Sawada	1994-08-23
5211031	Scroll type compressor and refrigeration cycle using the same	Akira Murayama, Tadashi Fukuishi, Sigeaki Kuroda, Toshiaki Koyama, Tadao Ochiai +4 more	1993-05-18	$64,000
5187342	Wire cut electric discharge machine	Toshiyuki Aso	1993-02-16
5173459	Si.sub.3 N.sub.4 -A1.sub.2 O.sub.3 composite sintered bodies and method of producing the same	Koichi Niihara, Atsushi Nakahira	1992-12-22
5164221	Forming die manufacturing method	Yoshihiro Someno, Makoto Sasaki	1992-11-17
5145720	Chemical vapor deposition of dense and transparent zirconia films	Hisanori Yamane	1992-09-08
5093150	Synthesis method by plasma chemical vapor deposition	Yoshihiro Someno, Makoto Sasaki	1992-03-03
5093156	Process for preparing carbon material	Seiichi Uemura, Yoshio Sohda, Yasuji Ido, Yukinori Kude, Takefumi Kohno +2 more	1992-03-03
5045356	Process for producing carbon/carbon composite having oxidation resistance	Seiichi Uemura, Yoshio Sohda, Yasuji Ido, Makoto Sasaki, Masayuki Niino	1991-09-03
4985117	Method of manufacturing josephson junctions	Hideyuki Kurosawa, Hisanori Yamane, Tsutomu Yamashita	1991-01-15

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Toshio Hirai — 41 Patents

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