Seibu Electric & Machinery Co., Ltd.

Seibu Electric & Machinery Co., Ltd. has been granted 8 US utility patents between 2017 and 2023, placing Seibu Electric & Machinery Co., Ltd. at rank #33,338 across all assignees tracked by PlainPatent. This portfolio spans 3 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.1 claims per patent with primary concentration in B23H (WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL). As a Foreign Corporation, Seibu Electric & Machinery Co., Ltd. is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 33.7/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 4 grants, compared with 4 in the 2015–2019 window — a +0% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Seibu Electric & Machinery Co., Ltd.'s 11.1 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while specialization in 3 subclasses reflects a tightly scoped invention area. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Seibu Electric & Machinery Co., Ltd. against peers pursuing similar technology classes.